Question: Refer to the sample data in Table 4-1. a. How many responses were actually lies? b. If one of the responses is randomly selected, what

Refer to the sample data in Table 4-1.

Table 4-1 Results from Experiments with Polygraph Instruments Did the Subject Actually

a. How many responses were actually lies?

b. If one of the responses is randomly selected, what is the probability that it is a lie? (Express the answer as a fraction.)

c. Use the rounding method described in this section to express the answer from part (b) as a decimal.

Table 4-1 Results from Experiments with Polygraph Instruments Did the Subject Actually Lie? No (Did Not Lie) Yes (Lied) Positive test result 15 42 (Polygraph test indicated that the subject lied.) (false positive) (true positive) Negative test result 32 9 (Polygraph test indicated that the subject did not lie.) (true negative) (false negative)

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