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A sample of 4 different calculators is randomly selected from a group containing 47 that are defective and 29 that have no defects. What is the probability that all four of the calculators selected are defective? Round to four decimal places.
8 years ago

Answers

Damon
47+29 = 76

first one 47/76
second on 46/75
third one 45/74
fourth one 43/73

multiply :)
8 years ago
JEN
456
6 years ago

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