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Five percent of all items sold by a mail-order company are returned by customers for a refund. Find the probability that, of two items sold

Five percent of all items sold by a mail-order company are returned by customers for a refund. Find the probability that, of two items sold during a given hour by this company, a. both will be returned for a refund b. neither will be returned for a refund Draw a tree diagram for this problem.

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