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In a shipment of 20 computer 3 are defective three computers are randomly selected and tested what is the probability that all three are defective if the first and second ones are not replaced after being tested?
4 years ago

Answers

mathhelper
What is
(3/20)(2/19)(1/(18) ?
4 years ago
CookieCrumbs/Pro-Truth-Efficient
The answer would be 1/1140
4 years ago

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