Let event Aequalssubject is telling the truth and event Bequalspolygraph test indicates that the subject is lying. Use your own words to translate the notation Upper P (B|A) into a verbal statement.

Question

Jasmine Nash

Mathematics

28 September, 20:04

Let event Aequalssubject is telling the truth and event Bequalspolygraph test indicates that the subject is lying. Use your own words to translate the notation Upper P (B|A) into a verbal statement.

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Hugo · Answer 1

P (B | A) will actually be the probability of the polygraph test being wrong.

Step-by-step explanation:

The event A represents the event that the subject is telling the truth.

The event B represents the event when he fails the polygraph test, which is indicative of the fact that he is lying.

The notation P (B | A) describes the probability that the subject fails the polygraph test given that he is actually telling the truth.

So in retrospect P (B | A) will actually be the probability of the polygraph test being wrong.