Rachel7224 Rachel7224

18-01-2017
Mathematics

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In a shipment of 20 computers, 3 are defective. Tree computers are randomly selected and tested. What is the probability that all three are defective if the first and second ones are replaced after being tested ? ( 20 POINTS )

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jackokahoot8 jackokahoot8

18-01-2017

The chances of finding all three defective are 1 / 180

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