SOLUTION: At a local university, 70% of incoming first-year students have computers. If 4 students are selected at random, find the probability that none of the four have a computer.

SOLUTION: At a local university, 70% of incoming first-year students have computers. If 4 students are selected at random, find the probability that none of the four have a computer.

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Question 899407: At a local university, 70% of incoming first-year students have computers. If 4 students are selected at random, find the probability that none of the four have a computer.

So far, I have tried (.30)(.30)(.30)(.30), and got .0081. Is this correct?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
p(no computer) = .30 , n = 4
P(x=4) = 4C4(.30)^4(.70)^0 = .0081
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