What is the probability that among 18 randomly observed

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According to a study done by a university? student, the probability a randomly selected individual will not cover his or her mouth when sneezing is 0.267. Suppose you sit on a bench in a mall and observe? people's habits as they sneeze.

(a) What is the probability that among 18 randomly observed individuals exactly 7 do not cover their mouth when? sneezing?

?(b) What is the probability that among 18 randomly observed individuals fewer than 6 do not cover their mouth when? sneezing?

?(c) Would you be surprised? if, after observing 18 ?individuals, fewer than half covered their mouth when? sneezing? Why?

Reference no: EM132858107

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