Mathematics, 26.04.2021 23:20 jjgurl60

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 bench in a mall and observe people's habits as they sneeze.
a) What is the probability that among 18 randomly observed individuals exactly 6 do not cover their mouth when sneezing?
(b) What is the probability that among 18 randomly observed individuals fewer than 4 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?

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