Question 710546: Kolzak Appliance Outlet just received a shipment of 10 DVD players. Shortly after they were received, the manufacturer called to report that he had inadvertently shipped 3 defective units. Ms. Kolzak, the owner of the outlet, decided to test 2 of the 10 DVD players she received.
What is the probability that neither of the 2 DVD players tested is defective? Assume the samples are drawn without replacement. (Round your answer to 4 decimal places.)
Probability
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Kolzak Appliance Outlet just received a shipment of 10 DVD players. Shortly after they were received, the manufacturer called to report that he had inadvertently shipped 3 defective units. Ms. Kolzak, the owner of the outlet, decided to test 2 of the 10 DVD players she received.
What is the probability that neither of the 2 DVD players tested is defective? Assume the samples are drawn without replacement. (Round your answer to 4 decimal places.)
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If both are not defective the 2 must have been 2 of the 7 good ones.
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P(none of 2 defective) = 7C2/10C2 = 0.4667
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Cheers,
Stan H.
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