Did the subject actually lie? No (did not lie) Yes (did lie) The polygraph test indicated that the subject lied. 15 42 The polygraph test indicated that the subject did not lie. 32 9 If one of the subjects is randomly selected, find the probability of selecting someone who lied.

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 49E
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Question

 

Did the subject actually lie?

No (did not lie)

Yes (did lie)

The polygraph test indicated that the subject lied.

15

42

The polygraph test indicated that the subject did not lie.

32

9

 

  1. If one of the subjects is randomly selected, find the probability of selecting someone who lied.

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