According to a Gallup poll 27% of American adults have confidence in banks. Suppose that you interview
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According to a Gallup poll 27% of American adults have confidence in banks. Suppose that you interview 5 Americans 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?
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