SOLUTION: a shipment of 12 television sets contains 3 defective sets. In how many ways can a hotel purchanse 5 of these sets and at least 2 of the defective sets?

Question 715999: a shipment of 12 television sets contains 3 defective sets. In how many ways can a hotel purchanse 5 of these sets and at least 2 of the defective sets?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
a shipment of 12 television sets contains 3 defective sets. In how many ways can a hotel purchanse 5 of these sets and at least 2 of the defective sets?
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Binomial Problem with n = 5 ; p(defective) = 1/4 ; p(not defective) = 3/4
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P(2<= x <=5) = binomcdf(5,1/4,5)-binomcdf(5,1/4,1) = 0.3672
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Cheers,
Stan H.
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