The table below displays results from experiments with polygraph instruments. Find the positive predictive value for the test. That​ is, find the probability that the subject​ lied, given that the test yields a positive result.     Did the Subject Actually​ Lie?       No​ (Did Not​ Lie) Yes​ (Lied) Positive test results   22 54 Negative test results   42 18

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter12: Probability
Section12.CR: Chapter 12 Review
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The table below displays results from experiments with polygraph instruments. Find the positive predictive value for the test. That​ is, find the probability that the subject​ lied, given that the test yields a positive result.

    Did the Subject Actually​ Lie?  
    No​ (Did Not​ Lie) Yes​ (Lied)
Positive test results   22 54
Negative test results   42 18
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