Question

According to a study done by Nick Wilson of Otago University Wellington, the probability a randomly selected individual will cover his or her mouth with a tissue, handkerchief, or elbow (the method recommended by public health officials) is 0.047. Suppose you sit on a bench in a mall and observe people’s habits as they sneeze.
(a) What is the probability that among 15 randomly observed individuals exactly 2 cover their mouth with a tissue, handkerchief, or elbow?
(b) What is the probability that among 15 randomly observed individuals fewer than 3 cover their mouth with a tissue, handkerchief, or elbow?
(c) Would you be surprised if, after observing 15 randomly observed individuals, more than 4 covered the mouth with a tissue, handkerchief, or elbow?


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  • CreatedApril 27, 2015
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