Mathematics, 15.04.2020 03:07 cambamm12

An article states that false-positives in polygraph tests (tests in which an individual fails even though he or she is telling the truth) are relatively common and occur about 20% of the time. Suppose that such a test is given to 10 trustworthy individuals.

a) What is the probability that all 10 pass?
b) What is the probability that more than 2 fail, even though all are trustworthy?

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