Question: The table below displays results from experiments with polygraph instruments. Find the positive predictive value for the test. Thatis, find the probability that the subjectlied,

The table below displays results from experiments with polygraph instruments. Find the positive predictive value for the test. Thatis, find the probability that the subjectlied, given that the test yields a positive result.

Did the Subject ActuallyLie?

No(Did NotLie) Yes(Lied)

Positive test results 15 41

Negative test results 30 11

The probability is

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