Mathematics, 08.04.2020 00:01, zookieblu

A sample of 4 different calculators is randomly selected from a group containing 9 that are defective and 8 that have no defects. Assume that the sample is taken with replacement. What is the probability that at least one of the calculators is defective

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A sample of 4 different calculators is randomly selected from a group containing 9 that are defectiv...