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According to a Gallop poll, 27% of American adults have confidence in banks. Suppose that you...

According to a Gallop poll, 27% of American adults have confidence in banks. Suppose that you interview 5 American adults at random.

(a) What is the probability that 2 or fewer have confidence in banks?

(b) What is the probability that no one had confidence in banks?

c) What is the probability that 3 or more have confidence in banks?

Math   Statistics-And-Probability   
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