Mathematics, 12.04.2021 06:10 Monicaamm12983

A box contains 28 widgets, 4 of which are defective. If 4 are sold at random, find the probability that (a) all are defective (b) none are defective.

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A box contains 28 widgets, 4 of which are defective. If 4 are sold at random, find the probability t...

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