SOLUTION: You buy 20 computers,3 of them are defective. Three computers are randomly selected and tested what is the probability that all three are defective if the first and second are not
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Question 420076: You buy 20 computers,3 of them are defective. Three computers are randomly selected and tested what is the probability that all three are defective if the first and second are not replaced after testing? Answer by robertb(5830) (Show Source):
