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A local county has an unemployment rate of 4.1%. A random sample of 15 employable people...

A local county has an unemployment rate of 4.1%. A random sample of 15 employable people are picked at random from the county and are asked if they are employed. The distribution is a binomial. Round answers to 4 decimal places.

a) Find the probability that exactly 4 in the sample are unemployed.

b) Find the probability that there are fewer than 4 in the sample are unemployed.

c) Find the probability that there are more than 3 in the sample are unemployed.

d) Find the probability that there are at most 4 in the sample are unemployed.

Math   Statistics-And-Probability   
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