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3 years ago

15

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, res

pectively. what is the expected number of books a customer will purchase?

1 answer:

jarptica [38.1K]3 years ago

6 0

Form the sum of products of probability and number of books:

0.2×0 +0.2×1 +0.6×2 = 0 +.2 +1.2 = 1.4 books

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Answer:

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