Mathematics, 11.07.2019 22:30, januarywrites

Suppose that the probabilities of a customer purchasing 0, 1, or 2 books at a book store are 0.20.2, 0.20.2, and 0.60.6, respectively. what is the expected number of books a customer will purchase?

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Suppose that the probabilities of a customer purchasing 0, 1, or 2 books at a book store are 0.20.2,...