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5. If 20% of the bolts produced by a machine are defective, determine the probability that, out of 4 bolts chosen at random, (a) 1,

5. If 20% of the bolts produced by a machine are defective, determine the probability that, out of 4 bolts chosen at random, (a) 1, (b) 0, and (c) at most 2 bolts will be defective

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