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MMLU-Pro / 11868 / In a factory four machines produce the same product. Machine A produces 10% of…

Problem

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question

In a factory four machines produce the same product. Machine A produces 10% of the output, machine B, 20%, machine C, 30%, and machine D, 40%. The proportion of defective items produced by these follows: Machine A: .001; Machine B: .0005; Machine C: .005; Machine D: .002. An item selected at random is found to be defective. What is the probability that the item was produced by A? by B? by C? by D?

category

engineering

options

  1. P(M_1|M) = 1/30, P(M_2|M) = 2/30, P(M_3|M) = 1/3, P(M_4|M) = 1/30
  2. P(M_1|M) = 1/15, P(M_2|M) = 1/15, P(M_3|M) = 1/2, P(M_4|M) = 2/15
  3. P(M_1|M) = 1/25, P(M_2|M) = 3/25, P(M_3|M) = 1/5, P(M_4|M) = 5/25
  4. P(M_1|M) = 2/25, P(M_2|M) = 2/25, P(M_3|M) = 1/4, P(M_4|M) = 7/25
  5. P(M_1|M) = 1/25, P(M_2|M) = 1/25, P(M_3|M) = 3/5, P(M_4|M) = 8/25
  6. P(M_1|M) = 1/25, P(M_2|M) = 1/25, P(M_3|M) = 1/5, P(M_4|M) = 1/25
  7. P(M_1|M) = 1/20, P(M_2|M) = 1/20, P(M_3|M) = 2/5, P(M_4|M) = 1/20
  8. P(M_1|M) = 1/50, P(M_2|M) = 1/50, P(M_3|M) = 1/10, P(M_4|M) = 1/50
  9. P(M_1|M) = 2/25, P(M_2|M) = 1/25, P(M_3|M) = 2/5, P(M_4|M) = 6/25
  10. P(M_1|M) = 3/25, P(M_2|M) = 1/50, P(M_3|M) = 3/10, P(M_4|M) = 9/25

src

stemez-ElectronicCommunications

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Source and history

upstream_id / Original problem ID
11868
task_id
911ac390-99b2-57d2-bbab-e81c4af4e048
task_key
default--test--11868
task_revision_id
1
config / split
default / test

Official source

initial import