Refer to the sample data for polygraph tests shown below. If one of the test subjects is randomly selected what is the probability that the subject is not lying. Is the result close to the probability of 0.441 for a negative test result.N o (Did Not Lie) 10 and 29 Yes (Lied) 42 and 12
To find the probability that the subject is not lying, we need to calculate the ratio of the number of subjects who did not lie (10) to the total number of subjects (10 + 29 + 42 + 12).
Probability = Number of subjects who did not lie / Total number of subjects
= 10 / (10 + 29 + 42 + 12)
= 10 / 93
≈ 0.1075
The result is not close to the probability of 0.441 for a negative test result (not lying).