Suppose that 20% of the time Henry eats out twice a week, 25% of the time he eats out once a week, and 55% of the time he doesn't eat out at all in a given week. What is the expected value for the number of times Henry eats out during a week?

Alisa Taylor 2022-10-22 Answered
Suppose that 20% of the time Henry eats out twice a week, 25% of the time he eats out once a week, and 55% of the time he doesn't eat out at all in a given week. What is the expected value for the number of times Henry eats out during a week?
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Answers (1)

domwaheights0m
Answered 2022-10-23 Author has 11 answers
E ( X ) =  Number of times he eat   probability = ( 0.20 × 2 + 0.25 × 1 + 0.55 × 0 ) = 0.65
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