SOLUTION: A retailer purchases 90 of a new brand of DVD player, of which 3 are defective. The purchase agreement says that if he tests 5 chosen at random and finds 1 or more defective, he re

Question 863115: A retailer purchases 90 of a new brand of DVD player, of which 3 are defective. The purchase agreement says that if he tests 5 chosen at random and finds 1 or more defective, he receives all the DVD players free of charge. What is the probability that he will not have to pay for the DVD players? (Round your answer to three decimal places.)
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!



Hi

p = 5/90 = 1/18,   n = 5

P(at least one defective)  = 1 - (no defects) =   

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