Question: I am getting stuck on how I find the decimal numbers P(0)+P(1)+P(2) ... I am stuck on getting the numbers for this. According to Harper's

I am getting stuck on how I find the decimal numbers P(0)+P(1)+P(2) ... I am stuck on getting the numbers for this.

According toHarper's Index,55% of all federal inmates are serving time for drug dealing. A random sample of20federal inmates is selected.

(a) What is the probability that11or more are serving time for drug dealing? (Round your answer to three decimal places.)

(b) What is the probability that5or fewer are serving time for drug dealing? (Round your answer to three decimal places.)

(c) What is the expected number of inmates serving time for drug dealing? (Round your answer to one decimal place.)

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