SOLUTION: A random sample is drawn from a large population and it is noted whether the people belong to the city or not. The probability that someone belongs to the city is .25. If 20 peop

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Question 908358: A random sample is drawn from a large population and it is noted whether the
people belong to the city or not. The probability that someone belongs to the city is .25.
If 20 people are selected, find the probability that there are
at least two persons who do
not belong to the city

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
p(not b elong to city) = .75, n = 20
P(x ≥ 2) = 1 - binomcdf(20, .75, 1)