candidate_id
stringlengths
36
63
condition
stringclasses
2 values
family
stringclasses
10 values
misconception_id
stringclasses
10 values
objective_correct_answer
stringlengths
2
20
pair_id
stringlengths
17
36
proposed_reference_answer
stringlengths
1
20
question
stringlengths
76
261
question_sha256
stringlengths
64
64
reference_correctness
stringclasses
2 values
run_id
stringclasses
1 value
schema_version
stringclasses
1 value
selector_observation_status
stringclasses
1 value
recurrence_indexing-0007--correct_reference
correct_reference
recurrence_indexing
apply_recurrence_one_time_too_few
605
recurrence_indexing-0007
605
A sequence is defined by a_0 = 0 and a_(k+1) = 3a_k + 5 for k >= 0. What is a_5?
c8c40102ffe8ed1a4e8609ebd567b74c6a299178fd8ea1b3113cdf5c1edb49b7
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
recurrence_indexing-0007--plausible_wrong_reference
plausible_wrong_reference
recurrence_indexing
apply_recurrence_one_time_too_few
605
recurrence_indexing-0007
200
A sequence is defined by a_0 = 0 and a_(k+1) = 3a_k + 5 for k >= 0. What is a_5?
c8c40102ffe8ed1a4e8609ebd567b74c6a299178fd8ea1b3113cdf5c1edb49b7
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
repeated_object_permutations-0007--correct_reference
correct_reference
repeated_object_permutations
treat_repeated_objects_as_distinct
560
repeated_object_permutations-0007
560
How many distinct strings can be formed by rearranging all letters of FFFEEEHH?
72d399e1e28d1f406e5b99dff709cc71b821e949844d390dd3dc79b44217761a
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
repeated_object_permutations-0007--plausible_wrong_reference
plausible_wrong_reference
repeated_object_permutations
treat_repeated_objects_as_distinct
560
repeated_object_permutations-0007
40320
How many distinct strings can be formed by rearranging all letters of FFFEEEHH?
72d399e1e28d1f406e5b99dff709cc71b821e949844d390dd3dc79b44217761a
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
successive_percent_change-0011--correct_reference
correct_reference
successive_percent_change
add_percentage_changes
2457/2
successive_percent_change-0011
2457/2
A quantity starts at 1500. It increases by 30%, then decreases by 30%, and finally decreases by 10%. What is the final value? Give an exact value.
22d6bddd3fa814e8a9c0aee6c03e37739e00dd65e4ba0ff200693322c3af1836
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
successive_percent_change-0011--plausible_wrong_reference
plausible_wrong_reference
successive_percent_change
add_percentage_changes
2457/2
successive_percent_change-0011
1350
A quantity starts at 1500. It increases by 30%, then decreases by 30%, and finally decreases by 10%. What is the final value? Give an exact value.
22d6bddd3fa814e8a9c0aee6c03e37739e00dd65e4ba0ff200693322c3af1836
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
repeated_object_permutations-0016--correct_reference
correct_reference
repeated_object_permutations
treat_repeated_objects_as_distinct
105
repeated_object_permutations-0016
105
How many distinct strings can be formed by rearranging all letters of GGGGDDC?
31d9371ab6f6e96c3f24eb68839b0dc82d6942436f014017ead7de6c7b0a74c9
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
repeated_object_permutations-0016--plausible_wrong_reference
plausible_wrong_reference
repeated_object_permutations
treat_repeated_objects_as_distinct
105
repeated_object_permutations-0016
5040
How many distinct strings can be formed by rearranging all letters of GGGGDDC?
31d9371ab6f6e96c3f24eb68839b0dc82d6942436f014017ead7de6c7b0a74c9
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
without_replacement_probability-0002--correct_reference
correct_reference
without_replacement_probability
treat_without_replacement_as_independent
9/19
without_replacement_probability-0002
9/19
An urn contains 15 red balls and 6 blue balls. Three balls are drawn uniformly without replacement. What is the probability that exactly two are red? Give the answer as a reduced fraction.
cb3b2b6e96d02372a7c80288917e6c58e385fa236cfd4ca1297e8b2597924669
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
without_replacement_probability-0002--plausible_wrong_reference
plausible_wrong_reference
without_replacement_probability
treat_without_replacement_as_independent
9/19
without_replacement_probability-0002
150/343
An urn contains 15 red balls and 6 blue balls. Three balls are drawn uniformly without replacement. What is the probability that exactly two are red? Give the answer as a reduced fraction.
cb3b2b6e96d02372a7c80288917e6c58e385fa236cfd4ca1297e8b2597924669
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
successive_percent_change-0009--correct_reference
correct_reference
successive_percent_change
add_percentage_changes
31416/25
successive_percent_change-0009
31416/25
A quantity starts at 1700. It increases by 20%, then decreases by 12%, and finally decreases by 30%. What is the final value? Give an exact value.
d5e8b061b478afe4a2df075f0abfdb29fff36f739ea77f93a8649127d9dd56ac
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
successive_percent_change-0009--plausible_wrong_reference
plausible_wrong_reference
successive_percent_change
add_percentage_changes
31416/25
successive_percent_change-0009
1326
A quantity starts at 1700. It increases by 20%, then decreases by 12%, and finally decreases by 30%. What is the final value? Give an exact value.
d5e8b061b478afe4a2df075f0abfdb29fff36f739ea77f93a8649127d9dd56ac
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
bayes_positive_test-0017--correct_reference
correct_reference
bayes_positive_test
confuse_sensitivity_with_posterior
3/19
bayes_positive_test-0017
3/19
In a population, 4% of people have a condition. A test has 90% sensitivity and 80% specificity. For a randomly selected person whose test is positive, what is the probability that the person actually has the condition? Give the answer as a reduced fraction.
3f4f43eae6c547be64c75e6473f58f93820bc4516edca0a7258370368bfea59e
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
bayes_positive_test-0017--plausible_wrong_reference
plausible_wrong_reference
bayes_positive_test
confuse_sensitivity_with_posterior
3/19
bayes_positive_test-0017
9/10
In a population, 4% of people have a condition. A test has 90% sensitivity and 80% specificity. For a randomly selected person whose test is positive, what is the probability that the person actually has the condition? Give the answer as a reduced fraction.
3f4f43eae6c547be64c75e6473f58f93820bc4516edca0a7258370368bfea59e
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
bayes_positive_test-0016--correct_reference
correct_reference
bayes_positive_test
confuse_sensitivity_with_posterior
1/4
bayes_positive_test-0016
1/4
In a population, 5% of people have a condition. A test has 95% sensitivity and 85% specificity. For a randomly selected person whose test is positive, what is the probability that the person actually has the condition? Give the answer as a reduced fraction.
d48ab1b04dc7fcae0a1b0d04324db15aae5960b9d9ce509eceefbad4dfd1f0e6
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
bayes_positive_test-0016--plausible_wrong_reference
plausible_wrong_reference
bayes_positive_test
confuse_sensitivity_with_posterior
1/4
bayes_positive_test-0016
19/20
In a population, 5% of people have a condition. A test has 95% sensitivity and 85% specificity. For a randomly selected person whose test is positive, what is the probability that the person actually has the condition? Give the answer as a reduced fraction.
d48ab1b04dc7fcae0a1b0d04324db15aae5960b9d9ce509eceefbad4dfd1f0e6
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
area_scaling-0019--correct_reference
correct_reference
area_scaling
add_length_and_width_percent_changes
2717/2
area_scaling-0019
2717/2
A rectangle initially has length 65 and width 20. Its length is increased by 10% while its width is decreased by 5%. What is the new area? Give an exact value.
5fa5b2a1209c9e5aa20a3e8f2d57cab057b6228a235e305c45eae5ad67ab5214
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
area_scaling-0019--plausible_wrong_reference
plausible_wrong_reference
area_scaling
add_length_and_width_percent_changes
2717/2
area_scaling-0019
1365
A rectangle initially has length 65 and width 20. Its length is increased by 10% while its width is decreased by 5%. What is the new area? Give an exact value.
5fa5b2a1209c9e5aa20a3e8f2d57cab057b6228a235e305c45eae5ad67ab5214
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
repeated_object_permutations-0001--correct_reference
correct_reference
repeated_object_permutations
treat_repeated_objects_as_distinct
210
repeated_object_permutations-0001
210
How many distinct strings can be formed by rearranging all letters of AAAFFBB?
76021d9c5c98a8068d9c5d2aea219bfea93ac5058728a3a0fc7bba9d9734d152
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
repeated_object_permutations-0001--plausible_wrong_reference
plausible_wrong_reference
repeated_object_permutations
treat_repeated_objects_as_distinct
210
repeated_object_permutations-0001
5040
How many distinct strings can be formed by rearranging all letters of AAAFFBB?
76021d9c5c98a8068d9c5d2aea219bfea93ac5058728a3a0fc7bba9d9734d152
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
without_replacement_probability-0009--correct_reference
correct_reference
without_replacement_probability
treat_without_replacement_as_independent
40/143
without_replacement_probability-0009
40/143
An urn contains 5 red balls and 8 blue balls. Three balls are drawn uniformly without replacement. What is the probability that exactly two are red? Give the answer as a reduced fraction.
add04d058565adf640a9dcfff297703a340740655997c15a65ac6487629c10ef
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
without_replacement_probability-0009--plausible_wrong_reference
plausible_wrong_reference
without_replacement_probability
treat_without_replacement_as_independent
40/143
without_replacement_probability-0009
600/2197
An urn contains 5 red balls and 8 blue balls. Three balls are drawn uniformly without replacement. What is the probability that exactly two are red? Give the answer as a reduced fraction.
add04d058565adf640a9dcfff297703a340740655997c15a65ac6487629c10ef
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
combined_work_rate-0007--correct_reference
correct_reference
combined_work_rate
use_departed_workers_rate_for_remainder
161/10
combined_work_rate-0007
161/10
Worker A can finish a job alone in 23 hours and worker B can finish it alone in 20 hours. They work together for 6 hours; then B leaves and A finishes the remaining work alone. How many hours elapse from the start until the job is finished? Give an exact value.
409baccb3c88e74e8c99eeb2c1b3d5e71d91f4910b906bc6bddf25d5d5456c4b
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
combined_work_rate-0007--plausible_wrong_reference
plausible_wrong_reference
combined_work_rate
use_departed_workers_rate_for_remainder
161/10
combined_work_rate-0007
340/23
Worker A can finish a job alone in 23 hours and worker B can finish it alone in 20 hours. They work together for 6 hours; then B leaves and A finishes the remaining work alone. How many hours elapse from the start until the job is finished? Give an exact value.
409baccb3c88e74e8c99eeb2c1b3d5e71d91f4910b906bc6bddf25d5d5456c4b
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
bayes_positive_test-0021--correct_reference
correct_reference
bayes_positive_test
confuse_sensitivity_with_posterior
12/35
bayes_positive_test-0021
12/35
In a population, 8% of people have a condition. A test has 90% sensitivity and 85% specificity. For a randomly selected person whose test is positive, what is the probability that the person actually has the condition? Give the answer as a reduced fraction.
244079c43563edbfc924c744f7e75c27e1c786ee2aa81ebc60dce74661abd9d4
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
bayes_positive_test-0021--plausible_wrong_reference
plausible_wrong_reference
bayes_positive_test
confuse_sensitivity_with_posterior
12/35
bayes_positive_test-0021
9/10
In a population, 8% of people have a condition. A test has 90% sensitivity and 85% specificity. For a randomly selected person whose test is positive, what is the probability that the person actually has the condition? Give the answer as a reduced fraction.
244079c43563edbfc924c744f7e75c27e1c786ee2aa81ebc60dce74661abd9d4
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
weighted_mean-0001--correct_reference
correct_reference
weighted_mean
unweighted_mean_of_group_means
2087/34
weighted_mean-0001
2087/34
Three classes contain 24, 25, and 19 students. Their mean test scores are 58, 52, and 78, respectively. What is the mean score across all students in the three classes? Give an exact value.
a1ac2a05ededd1310e279d69a1c2e0c6c9289275102fb53afff7d0aad853f40a
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
weighted_mean-0001--plausible_wrong_reference
plausible_wrong_reference
weighted_mean
unweighted_mean_of_group_means
2087/34
weighted_mean-0001
188/3
Three classes contain 24, 25, and 19 students. Their mean test scores are 58, 52, and 78, respectively. What is the mean score across all students in the three classes? Give an exact value.
a1ac2a05ededd1310e279d69a1c2e0c6c9289275102fb53afff7d0aad853f40a
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
bayes_positive_test-0018--correct_reference
correct_reference
bayes_positive_test
confuse_sensitivity_with_posterior
38/107
bayes_positive_test-0018
38/107
In a population, 8% of people have a condition. A test has 95% sensitivity and 85% specificity. For a randomly selected person whose test is positive, what is the probability that the person actually has the condition? Give the answer as a reduced fraction.
8e265a1942d14a165627a7545814750d4d80311a4a680f5e57aaeca41655b7a2
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
bayes_positive_test-0018--plausible_wrong_reference
plausible_wrong_reference
bayes_positive_test
confuse_sensitivity_with_posterior
38/107
bayes_positive_test-0018
19/20
In a population, 8% of people have a condition. A test has 95% sensitivity and 85% specificity. For a randomly selected person whose test is positive, what is the probability that the person actually has the condition? Give the answer as a reduced fraction.
8e265a1942d14a165627a7545814750d4d80311a4a680f5e57aaeca41655b7a2
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
successive_percent_change-0014--correct_reference
correct_reference
successive_percent_change
add_percentage_changes
5292/5
successive_percent_change-0014
5292/5
A quantity starts at 1800. It increases by 12%, then decreases by 30%, and finally decreases by 25%. What is the final value? Give an exact value.
82e21dfbaa3519e93de85e903728fbcba70b1fd0ad6a3142d1010c3966414d75
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
successive_percent_change-0014--plausible_wrong_reference
plausible_wrong_reference
successive_percent_change
add_percentage_changes
5292/5
successive_percent_change-0014
1026
A quantity starts at 1800. It increases by 12%, then decreases by 30%, and finally decreases by 25%. What is the final value? Give an exact value.
82e21dfbaa3519e93de85e903728fbcba70b1fd0ad6a3142d1010c3966414d75
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
recurrence_indexing-0001--correct_reference
correct_reference
recurrence_indexing
apply_recurrence_one_time_too_few
42648
recurrence_indexing-0001
42648
A sequence is defined by a_0 = 8 and a_(k+1) = 3a_k - 3 for k >= 0. What is a_8?
8362885a92689cbb2335161abb77f30ddd855c761f9272b01e02adae6ee04d03
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
recurrence_indexing-0001--plausible_wrong_reference
plausible_wrong_reference
recurrence_indexing
apply_recurrence_one_time_too_few
42648
recurrence_indexing-0001
14217
A sequence is defined by a_0 = 8 and a_(k+1) = 3a_k - 3 for k >= 0. What is a_8?
8362885a92689cbb2335161abb77f30ddd855c761f9272b01e02adae6ee04d03
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
without_replacement_probability-0004--correct_reference
correct_reference
without_replacement_probability
treat_without_replacement_as_independent
91/380
without_replacement_probability-0004
91/380
An urn contains 7 red balls and 13 blue balls. Three balls are drawn uniformly without replacement. What is the probability that exactly two are red? Give the answer as a reduced fraction.
892565e68d799d42fd363187367de62d2c3cbf6052e2a5063ffc1e82e8515e31
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
without_replacement_probability-0004--plausible_wrong_reference
plausible_wrong_reference
without_replacement_probability
treat_without_replacement_as_independent
91/380
without_replacement_probability-0004
1911/8000
An urn contains 7 red balls and 13 blue balls. Three balls are drawn uniformly without replacement. What is the probability that exactly two are red? Give the answer as a reduced fraction.
892565e68d799d42fd363187367de62d2c3cbf6052e2a5063ffc1e82e8515e31
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
without_replacement_probability-0017--correct_reference
correct_reference
without_replacement_probability
treat_without_replacement_as_independent
66/161
without_replacement_probability-0017
66/161
An urn contains 12 red balls and 11 blue balls. Three balls are drawn uniformly without replacement. What is the probability that exactly two are red? Give the answer as a reduced fraction.
6e1c52549d1cad535266baae879d0ecbb8db68a3b036523e27214291a63e670e
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
without_replacement_probability-0017--plausible_wrong_reference
plausible_wrong_reference
without_replacement_probability
treat_without_replacement_as_independent
66/161
without_replacement_probability-0017
4752/12167
An urn contains 12 red balls and 11 blue balls. Three balls are drawn uniformly without replacement. What is the probability that exactly two are red? Give the answer as a reduced fraction.
6e1c52549d1cad535266baae879d0ecbb8db68a3b036523e27214291a63e670e
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
weighted_mean-0018--correct_reference
correct_reference
weighted_mean
unweighted_mean_of_group_means
3671/49
weighted_mean-0018
3671/49
Three classes contain 12, 17, and 20 students. Their mean test scores are 59, 79, and 81, respectively. What is the mean score across all students in the three classes? Give an exact value.
96aa932df09090df717a29f3ff2fe81359675d42d2632505b60f9d224ba3a337
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
weighted_mean-0018--plausible_wrong_reference
plausible_wrong_reference
weighted_mean
unweighted_mean_of_group_means
3671/49
weighted_mean-0018
73
Three classes contain 12, 17, and 20 students. Their mean test scores are 59, 79, and 81, respectively. What is the mean score across all students in the three classes? Give an exact value.
96aa932df09090df717a29f3ff2fe81359675d42d2632505b60f9d224ba3a337
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
equal_distance_average_speed-0018--correct_reference
correct_reference
equal_distance_average_speed
arithmetic_mean_of_speeds
720/19
equal_distance_average_speed-0018
720/19
A vehicle travels 79 km from A to B at 24 km/h and returns the same 79 km at 90 km/h. What is its average speed for the entire round trip? Give an exact value in km/h.
9b8957180a8b1a7d95237512e837a4c979ed46c56cf917bee7092426bdfa5f3d
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
equal_distance_average_speed-0018--plausible_wrong_reference
plausible_wrong_reference
equal_distance_average_speed
arithmetic_mean_of_speeds
720/19
equal_distance_average_speed-0018
57
A vehicle travels 79 km from A to B at 24 km/h and returns the same 79 km at 90 km/h. What is its average speed for the entire round trip? Give an exact value in km/h.
9b8957180a8b1a7d95237512e837a4c979ed46c56cf917bee7092426bdfa5f3d
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
bayes_positive_test-0011--correct_reference
correct_reference
bayes_positive_test
confuse_sensitivity_with_posterior
45/142
bayes_positive_test-0011
45/142
In a population, 3% of people have a condition. A test has 75% sensitivity and 95% specificity. For a randomly selected person whose test is positive, what is the probability that the person actually has the condition? Give the answer as a reduced fraction.
9030c56904071fc2dc7080fb5047f5fe0d6e3a45cbf112447c5c389247db3c35
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
bayes_positive_test-0011--plausible_wrong_reference
plausible_wrong_reference
bayes_positive_test
confuse_sensitivity_with_posterior
45/142
bayes_positive_test-0011
3/4
In a population, 3% of people have a condition. A test has 75% sensitivity and 95% specificity. For a randomly selected person whose test is positive, what is the probability that the person actually has the condition? Give the answer as a reduced fraction.
9030c56904071fc2dc7080fb5047f5fe0d6e3a45cbf112447c5c389247db3c35
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
area_scaling-0002--correct_reference
correct_reference
area_scaling
add_length_and_width_percent_changes
1125
area_scaling-0002
1125
A rectangle initially has length 40 and width 30. Its length is increased by 25% while its width is decreased by 25%. What is the new area? Give an exact value.
d03af6b2ee1a4034c1f5047e511a4f17a80a0015a014ecea5471d2122fad6f8a
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
area_scaling-0002--plausible_wrong_reference
plausible_wrong_reference
area_scaling
add_length_and_width_percent_changes
1125
area_scaling-0002
1200
A rectangle initially has length 40 and width 30. Its length is increased by 25% while its width is decreased by 25%. What is the new area? Give an exact value.
d03af6b2ee1a4034c1f5047e511a4f17a80a0015a014ecea5471d2122fad6f8a
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
equal_distance_average_speed-0019--correct_reference
correct_reference
equal_distance_average_speed
arithmetic_mean_of_speeds
3276/47
equal_distance_average_speed-0019
3276/47
A vehicle travels 149 km from A to B at 78 km/h and returns the same 149 km at 63 km/h. What is its average speed for the entire round trip? Give an exact value in km/h.
df32898e6c7311345af900b88d643cc2f3dac5afba69c5889d888a1d60c0c7f8
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
equal_distance_average_speed-0019--plausible_wrong_reference
plausible_wrong_reference
equal_distance_average_speed
arithmetic_mean_of_speeds
3276/47
equal_distance_average_speed-0019
141/2
A vehicle travels 149 km from A to B at 78 km/h and returns the same 149 km at 63 km/h. What is its average speed for the entire round trip? Give an exact value in km/h.
df32898e6c7311345af900b88d643cc2f3dac5afba69c5889d888a1d60c0c7f8
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
successive_percent_change-0016--correct_reference
correct_reference
successive_percent_change
add_percentage_changes
41216/25
successive_percent_change-0016
41216/25
A quantity starts at 1600. It increases by 15%, then decreases by 20%, and finally increases by 12%. What is the final value? Give an exact value.
8fc2ace4581c9532fea6574138d441e4d94cc93efcec6b7578f9f59b8ccedf73
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
successive_percent_change-0016--plausible_wrong_reference
plausible_wrong_reference
successive_percent_change
add_percentage_changes
41216/25
successive_percent_change-0016
1712
A quantity starts at 1600. It increases by 15%, then decreases by 20%, and finally increases by 12%. What is the final value? Give an exact value.
8fc2ace4581c9532fea6574138d441e4d94cc93efcec6b7578f9f59b8ccedf73
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
recurrence_indexing-0019--correct_reference
correct_reference
recurrence_indexing
apply_recurrence_one_time_too_few
318
recurrence_indexing-0019
318
A sequence is defined by a_0 = 3 and a_(k+1) = 2a_k + 2 for k >= 0. What is a_6?
b097b47f6ccbcdc24e7781f8369be0e799d1f28a9b907134640e73be6d47c8f6
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
recurrence_indexing-0019--plausible_wrong_reference
plausible_wrong_reference
recurrence_indexing
apply_recurrence_one_time_too_few
318
recurrence_indexing-0019
158
A sequence is defined by a_0 = 3 and a_(k+1) = 2a_k + 2 for k >= 0. What is a_6?
b097b47f6ccbcdc24e7781f8369be0e799d1f28a9b907134640e73be6d47c8f6
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
recurrence_indexing-0003--correct_reference
correct_reference
recurrence_indexing
apply_recurrence_one_time_too_few
-7654
recurrence_indexing-0003
-7654
A sequence is defined by a_0 = -3 and a_(k+1) = 3a_k - 1 for k >= 0. What is a_7?
2a68424a9daeb23df5dca2746c6b1553efb3db64cff51a47142341b6597f46be
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
recurrence_indexing-0003--plausible_wrong_reference
plausible_wrong_reference
recurrence_indexing
apply_recurrence_one_time_too_few
-7654
recurrence_indexing-0003
-2551
A sequence is defined by a_0 = -3 and a_(k+1) = 3a_k - 1 for k >= 0. What is a_7?
2a68424a9daeb23df5dca2746c6b1553efb3db64cff51a47142341b6597f46be
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
area_scaling-0007--correct_reference
correct_reference
area_scaling
add_length_and_width_percent_changes
2625
area_scaling-0007
2625
A rectangle initially has length 70 and width 40. Its length is increased by 25% while its width is decreased by 25%. What is the new area? Give an exact value.
e1d81a4714576897bd67128113c5c2196326355c7b9934a00335a6c020ee6b1d
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
area_scaling-0007--plausible_wrong_reference
plausible_wrong_reference
area_scaling
add_length_and_width_percent_changes
2625
area_scaling-0007
2800
A rectangle initially has length 70 and width 40. Its length is increased by 25% while its width is decreased by 25%. What is the new area? Give an exact value.
e1d81a4714576897bd67128113c5c2196326355c7b9934a00335a6c020ee6b1d
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
bayes_positive_test-0006--correct_reference
correct_reference
bayes_positive_test
confuse_sensitivity_with_posterior
17/39
bayes_positive_test-0006
17/39
In a population, 12% of people have a condition. A test has 85% sensitivity and 85% specificity. For a randomly selected person whose test is positive, what is the probability that the person actually has the condition? Give the answer as a reduced fraction.
081b21566a9034272e6ffabb6c379345bf64c4225352be70dcd2a3a8b7cfc5c3
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
bayes_positive_test-0006--plausible_wrong_reference
plausible_wrong_reference
bayes_positive_test
confuse_sensitivity_with_posterior
17/39
bayes_positive_test-0006
17/20
In a population, 12% of people have a condition. A test has 85% sensitivity and 85% specificity. For a randomly selected person whose test is positive, what is the probability that the person actually has the condition? Give the answer as a reduced fraction.
081b21566a9034272e6ffabb6c379345bf64c4225352be70dcd2a3a8b7cfc5c3
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
combined_work_rate-0004--correct_reference
correct_reference
combined_work_rate
use_departed_workers_rate_for_remainder
117/19
combined_work_rate-0004
117/19
Worker A can finish a job alone in 9 hours and worker B can finish it alone in 19 hours. They work together for 6 hours; then B leaves and A finishes the remaining work alone. How many hours elapse from the start until the job is finished? Give an exact value.
f6516eab83c70f829661e776efb1c7a71e86b0db5830fad35ed07ea331967db6
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
combined_work_rate-0004--plausible_wrong_reference
plausible_wrong_reference
combined_work_rate
use_departed_workers_rate_for_remainder
117/19
combined_work_rate-0004
19/3
Worker A can finish a job alone in 9 hours and worker B can finish it alone in 19 hours. They work together for 6 hours; then B leaves and A finishes the remaining work alone. How many hours elapse from the start until the job is finished? Give an exact value.
f6516eab83c70f829661e776efb1c7a71e86b0db5830fad35ed07ea331967db6
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
recurrence_indexing-0006--correct_reference
correct_reference
recurrence_indexing
apply_recurrence_one_time_too_few
124
recurrence_indexing-0006
124
A sequence is defined by a_0 = -2 and a_(k+1) = 2a_k + 4 for k >= 0. What is a_6?
4ee30c6ea9a3546e2cb7b41f9b403299ae05ba58e7d088c0adcb7f5e3cd60b9c
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
recurrence_indexing-0006--plausible_wrong_reference
plausible_wrong_reference
recurrence_indexing
apply_recurrence_one_time_too_few
124
recurrence_indexing-0006
60
A sequence is defined by a_0 = -2 and a_(k+1) = 2a_k + 4 for k >= 0. What is a_6?
4ee30c6ea9a3546e2cb7b41f9b403299ae05ba58e7d088c0adcb7f5e3cd60b9c
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
repeated_object_permutations-0011--correct_reference
correct_reference
repeated_object_permutations
treat_repeated_objects_as_distinct
210
repeated_object_permutations-0011
210
How many distinct strings can be formed by rearranging all letters of BBCCCEE?
0feeb4d52f7772105a46814dc1a0dfd00e43b8c6b023c651dee1b6b1702477e5
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
repeated_object_permutations-0011--plausible_wrong_reference
plausible_wrong_reference
repeated_object_permutations
treat_repeated_objects_as_distinct
210
repeated_object_permutations-0011
5040
How many distinct strings can be formed by rearranging all letters of BBCCCEE?
0feeb4d52f7772105a46814dc1a0dfd00e43b8c6b023c651dee1b6b1702477e5
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
recurrence_indexing-0004--correct_reference
correct_reference
recurrence_indexing
apply_recurrence_one_time_too_few
52487
recurrence_indexing-0004
52487
A sequence is defined by a_0 = 7 and a_(k+1) = 3a_k + 2 for k >= 0. What is a_8?
2a4059b4b81d48d0913fe4d32c95f3939ee8335f45fd7e2e1589ea3ebd829bd4
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
recurrence_indexing-0004--plausible_wrong_reference
plausible_wrong_reference
recurrence_indexing
apply_recurrence_one_time_too_few
52487
recurrence_indexing-0004
17495
A sequence is defined by a_0 = 7 and a_(k+1) = 3a_k + 2 for k >= 0. What is a_8?
2a4059b4b81d48d0913fe4d32c95f3939ee8335f45fd7e2e1589ea3ebd829bd4
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
recurrence_indexing-0012--correct_reference
correct_reference
recurrence_indexing
apply_recurrence_one_time_too_few
-9840
recurrence_indexing-0012
-9840
A sequence is defined by a_0 = -3 and a_(k+1) = 3a_k - 3 for k >= 0. What is a_7?
332c51dd0053de99f86dbae1dc636d692ca5ea654c8ca2e726a924db30ec4680
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
recurrence_indexing-0012--plausible_wrong_reference
plausible_wrong_reference
recurrence_indexing
apply_recurrence_one_time_too_few
-9840
recurrence_indexing-0012
-3279
A sequence is defined by a_0 = -3 and a_(k+1) = 3a_k - 3 for k >= 0. What is a_7?
332c51dd0053de99f86dbae1dc636d692ca5ea654c8ca2e726a924db30ec4680
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
bayes_positive_test-0002--correct_reference
correct_reference
bayes_positive_test
confuse_sensitivity_with_posterior
9/28
bayes_positive_test-0002
9/28
In a population, 5% of people have a condition. A test has 90% sensitivity and 90% specificity. For a randomly selected person whose test is positive, what is the probability that the person actually has the condition? Give the answer as a reduced fraction.
65668125929e702544d68ad1329efa1a5a2a31d542880374669c9dbe9b9fc313
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
bayes_positive_test-0002--plausible_wrong_reference
plausible_wrong_reference
bayes_positive_test
confuse_sensitivity_with_posterior
9/28
bayes_positive_test-0002
9/10
In a population, 5% of people have a condition. A test has 90% sensitivity and 90% specificity. For a randomly selected person whose test is positive, what is the probability that the person actually has the condition? Give the answer as a reduced fraction.
65668125929e702544d68ad1329efa1a5a2a31d542880374669c9dbe9b9fc313
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
repeated_object_permutations-0004--correct_reference
correct_reference
repeated_object_permutations
treat_repeated_objects_as_distinct
560
repeated_object_permutations-0004
560
How many distinct strings can be formed by rearranging all letters of HHHGGGFF?
1c9855b7e389972732c90e129ae54520e48fbd10a2586c2febc1db4644382f52
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
repeated_object_permutations-0004--plausible_wrong_reference
plausible_wrong_reference
repeated_object_permutations
treat_repeated_objects_as_distinct
560
repeated_object_permutations-0004
40320
How many distinct strings can be formed by rearranging all letters of HHHGGGFF?
1c9855b7e389972732c90e129ae54520e48fbd10a2586c2febc1db4644382f52
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
area_scaling-0021--correct_reference
correct_reference
area_scaling
add_length_and_width_percent_changes
5000
area_scaling-0021
5000
A rectangle initially has length 100 and width 50. Its length is increased by 25% while its width is decreased by 20%. What is the new area? Give an exact value.
7f2d798574aea7c3ca7a49f6deed74bc1efbd17d9227e6bfd38cda796d4a359d
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
area_scaling-0021--plausible_wrong_reference
plausible_wrong_reference
area_scaling
add_length_and_width_percent_changes
5000
area_scaling-0021
5250
A rectangle initially has length 100 and width 50. Its length is increased by 25% while its width is decreased by 20%. What is the new area? Give an exact value.
7f2d798574aea7c3ca7a49f6deed74bc1efbd17d9227e6bfd38cda796d4a359d
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
recurrence_indexing-0018--correct_reference
correct_reference
recurrence_indexing
apply_recurrence_one_time_too_few
1402
recurrence_indexing-0018
1402
A sequence is defined by a_0 = 5 and a_(k+1) = 2a_k + 6 for k >= 0. What is a_7?
c7bf9fe7ef048eb9b6aea11e3d5700874484097d0fc64aa85ea7a1ab8b833303
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
recurrence_indexing-0018--plausible_wrong_reference
plausible_wrong_reference
recurrence_indexing
apply_recurrence_one_time_too_few
1402
recurrence_indexing-0018
698
A sequence is defined by a_0 = 5 and a_(k+1) = 2a_k + 6 for k >= 0. What is a_7?
c7bf9fe7ef048eb9b6aea11e3d5700874484097d0fc64aa85ea7a1ab8b833303
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
combined_work_rate-0000--correct_reference
correct_reference
combined_work_rate
use_departed_workers_rate_for_remainder
117/11
combined_work_rate-0000
117/11
Worker A can finish a job alone in 18 hours and worker B can finish it alone in 22 hours. They work together for 9 hours; then B leaves and A finishes the remaining work alone. How many hours elapse from the start until the job is finished? Give an exact value.
78cad8c2de487942d78cf35b4ef18521aebf9377ceb10d64452ba2cc979853ef
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
combined_work_rate-0000--plausible_wrong_reference
plausible_wrong_reference
combined_work_rate
use_departed_workers_rate_for_remainder
117/11
combined_work_rate-0000
11
Worker A can finish a job alone in 18 hours and worker B can finish it alone in 22 hours. They work together for 9 hours; then B leaves and A finishes the remaining work alone. How many hours elapse from the start until the job is finished? Give an exact value.
78cad8c2de487942d78cf35b4ef18521aebf9377ceb10d64452ba2cc979853ef
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
weighted_mean-0017--correct_reference
correct_reference
weighted_mean
unweighted_mean_of_group_means
3529/55
weighted_mean-0017
3529/55
Three classes contain 14, 20, and 21 students. Their mean test scores are 62, 69, and 61, respectively. What is the mean score across all students in the three classes? Give an exact value.
7d13ebdf2eab2d140f07ef5a95384f334c9f741cfd205089367ae9ff1696249d
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
weighted_mean-0017--plausible_wrong_reference
plausible_wrong_reference
weighted_mean
unweighted_mean_of_group_means
3529/55
weighted_mean-0017
64
Three classes contain 14, 20, and 21 students. Their mean test scores are 62, 69, and 61, respectively. What is the mean score across all students in the three classes? Give an exact value.
7d13ebdf2eab2d140f07ef5a95384f334c9f741cfd205089367ae9ff1696249d
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
equal_distance_average_speed-0014--correct_reference
correct_reference
equal_distance_average_speed
arithmetic_mean_of_speeds
44
equal_distance_average_speed-0014
44
A vehicle travels 154 km from A to B at 66 km/h and returns the same 154 km at 33 km/h. What is its average speed for the entire round trip? Give an exact value in km/h.
a9b846df6c055fc5ddee85446e31287f1fe4939cb896d2b4f26fb30883e5b8ed
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
equal_distance_average_speed-0014--plausible_wrong_reference
plausible_wrong_reference
equal_distance_average_speed
arithmetic_mean_of_speeds
44
equal_distance_average_speed-0014
99/2
A vehicle travels 154 km from A to B at 66 km/h and returns the same 154 km at 33 km/h. What is its average speed for the entire round trip? Give an exact value in km/h.
a9b846df6c055fc5ddee85446e31287f1fe4939cb896d2b4f26fb30883e5b8ed
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
weighted_mean-0005--correct_reference
correct_reference
weighted_mean
unweighted_mean_of_group_means
2740/41
weighted_mean-0005
2740/41
Three classes contain 22, 6, and 13 students. Their mean test scores are 75, 69, and 52, respectively. What is the mean score across all students in the three classes? Give an exact value.
fb9e19498544c4620e4281f6f39b737b30d3e9038dd47c4f11aa2d4a8c8bcd28
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
weighted_mean-0005--plausible_wrong_reference
plausible_wrong_reference
weighted_mean
unweighted_mean_of_group_means
2740/41
weighted_mean-0005
196/3
Three classes contain 22, 6, and 13 students. Their mean test scores are 75, 69, and 52, respectively. What is the mean score across all students in the three classes? Give an exact value.
fb9e19498544c4620e4281f6f39b737b30d3e9038dd47c4f11aa2d4a8c8bcd28
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
successive_percent_change-0021--correct_reference
correct_reference
successive_percent_change
add_percentage_changes
44226/25
successive_percent_change-0021
44226/25
A quantity starts at 1400. It increases by 30%, then decreases by 10%, and finally increases by 8%. What is the final value? Give an exact value.
0d1ebfccb59fe1f09a2e42e58d8f9b463a90fba4e09541dd67162cbc53344c42
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
successive_percent_change-0021--plausible_wrong_reference
plausible_wrong_reference
successive_percent_change
add_percentage_changes
44226/25
successive_percent_change-0021
1792
A quantity starts at 1400. It increases by 30%, then decreases by 10%, and finally increases by 8%. What is the final value? Give an exact value.
0d1ebfccb59fe1f09a2e42e58d8f9b463a90fba4e09541dd67162cbc53344c42
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
repeated_object_permutations-0002--correct_reference
correct_reference
repeated_object_permutations
treat_repeated_objects_as_distinct
280
repeated_object_permutations-0002
280
How many distinct strings can be formed by rearranging all letters of EEEEFFFA?
d04232c7660dc2e319565ac5d6309e942dfb19c6da2899fa870efcfa3e8d44c6
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
repeated_object_permutations-0002--plausible_wrong_reference
plausible_wrong_reference
repeated_object_permutations
treat_repeated_objects_as_distinct
280
repeated_object_permutations-0002
40320
How many distinct strings can be formed by rearranging all letters of EEEEFFFA?
d04232c7660dc2e319565ac5d6309e942dfb19c6da2899fa870efcfa3e8d44c6
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
weighted_mean-0000--correct_reference
correct_reference
weighted_mean
unweighted_mean_of_group_means
2341/40
weighted_mean-0000
2341/40
Three classes contain 16, 7, and 17 students. Their mean test scores are 52, 82, and 55, respectively. What is the mean score across all students in the three classes? Give an exact value.
8a25ef3d5bc5fd9565d616f4b88473281358081ed8dc6dd5378193947bc45e76
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
weighted_mean-0000--plausible_wrong_reference
plausible_wrong_reference
weighted_mean
unweighted_mean_of_group_means
2341/40
weighted_mean-0000
63
Three classes contain 16, 7, and 17 students. Their mean test scores are 52, 82, and 55, respectively. What is the mean score across all students in the three classes? Give an exact value.
8a25ef3d5bc5fd9565d616f4b88473281358081ed8dc6dd5378193947bc45e76
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
area_scaling-0009--correct_reference
correct_reference
area_scaling
add_length_and_width_percent_changes
6318
area_scaling-0009
6318
A rectangle initially has length 90 and width 65. Its length is increased by 20% while its width is decreased by 10%. What is the new area? Give an exact value.
36ae33f413d9b852ca5821d2a3f4a692b45a6f1241dd54fbd339f5608b307618
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
area_scaling-0009--plausible_wrong_reference
plausible_wrong_reference
area_scaling
add_length_and_width_percent_changes
6318
area_scaling-0009
6435
A rectangle initially has length 90 and width 65. Its length is increased by 20% while its width is decreased by 10%. What is the new area? Give an exact value.
36ae33f413d9b852ca5821d2a3f4a692b45a6f1241dd54fbd339f5608b307618
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
area_scaling-0012--correct_reference
correct_reference
area_scaling
add_length_and_width_percent_changes
6318
area_scaling-0012
6318
A rectangle initially has length 90 and width 60. Its length is increased by 30% while its width is decreased by 10%. What is the new area? Give an exact value.
ce568c0509b8e1b43a5c14a8ab4db805f6902069fabb728bbf347761e4cb2daf
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
area_scaling-0012--plausible_wrong_reference
plausible_wrong_reference
area_scaling
add_length_and_width_percent_changes
6318
area_scaling-0012
6480
A rectangle initially has length 90 and width 60. Its length is increased by 30% while its width is decreased by 10%. What is the new area? Give an exact value.
ce568c0509b8e1b43a5c14a8ab4db805f6902069fabb728bbf347761e4cb2daf
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
without_replacement_probability-0015--correct_reference
correct_reference
without_replacement_probability
treat_without_replacement_as_independent
91/190
without_replacement_probability-0015
91/190
An urn contains 14 red balls and 7 blue balls. Three balls are drawn uniformly without replacement. What is the probability that exactly two are red? Give the answer as a reduced fraction.
83906ec45a058cf87a885f2d1871d199259a37030073b398bcd7fc26bab3f984
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
without_replacement_probability-0015--plausible_wrong_reference
plausible_wrong_reference
without_replacement_probability
treat_without_replacement_as_independent
91/190
without_replacement_probability-0015
4/9
An urn contains 14 red balls and 7 blue balls. Three balls are drawn uniformly without replacement. What is the probability that exactly two are red? Give the answer as a reduced fraction.
83906ec45a058cf87a885f2d1871d199259a37030073b398bcd7fc26bab3f984
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
combined_work_rate-0002--correct_reference
correct_reference
combined_work_rate
use_departed_workers_rate_for_remainder
10
combined_work_rate-0002
10
Worker A can finish a job alone in 15 hours and worker B can finish it alone in 6 hours. They work together for 2 hours; then B leaves and A finishes the remaining work alone. How many hours elapse from the start until the job is finished? Give an exact value.
b871470e5aaa24ec6f931ea0cbb8e980d1e6dcb759408ddf6547604a3594e099
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
combined_work_rate-0002--plausible_wrong_reference
plausible_wrong_reference
combined_work_rate
use_departed_workers_rate_for_remainder
10
combined_work_rate-0002
26/5
Worker A can finish a job alone in 15 hours and worker B can finish it alone in 6 hours. They work together for 2 hours; then B leaves and A finishes the remaining work alone. How many hours elapse from the start until the job is finished? Give an exact value.
b871470e5aaa24ec6f931ea0cbb8e980d1e6dcb759408ddf6547604a3594e099
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
recurrence_indexing-0020--correct_reference
correct_reference
recurrence_indexing
apply_recurrence_one_time_too_few
36088
recurrence_indexing-0020
36088
A sequence is defined by a_0 = 8 and a_(k+1) = 3a_k - 5 for k >= 0. What is a_8?
ce6e0882103bff3bb3b0e942bddda66bdbff823957777536dcfc3723525fbe12
correct
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run
recurrence_indexing-0020--plausible_wrong_reference
plausible_wrong_reference
recurrence_indexing
apply_recurrence_one_time_too_few
36088
recurrence_indexing-0020
12031
A sequence is defined by a_0 = 8 and a_(k+1) = 3a_k - 5 for k >= 0. What is a_8?
ce6e0882103bff3bb3b0e942bddda66bdbff823957777536dcfc3723525fbe12
incorrect
stage1-coherent-wrong-label-v1
curcon.coherent_wrong_label_twin.v1
not_yet_run