Question
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
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
5
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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Algebra and Trigonometry
Authors: Ron Larson
10th edition
9781337514255, 1337271179, 133751425X, 978-1337271172
