Question: Five percent of all items sold by a mail order company

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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  • CreatedAugust 25, 2015
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