Mathematics, 14.02.2020 03:45 rome58
According to a study, nearly 80% of workers in law libraries are satisfied with their job. Assume the true proportion of law librarians are satisfied with their job is 0.8. In a random sample of 20 law librarians, what is the probability that at most 4 are unsatisfied with their job?
Answers: 2
, then 
. Let 
be the probability of being unsatisfied. Then 
is the mean and is given by 
.
,
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According to a study, nearly 80% of workers in law libraries are satisfied with their job. Assume th...
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