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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domwaheights0m

Answered 2022-10-23
Author has **11** answers

$E(X)=\sum \text{Number of times he eat}\cdot \text{probability}\phantom{\rule{0ex}{0ex}}=(0.20\times 2+0.25\times 1+0.55\times 0)\phantom{\rule{0ex}{0ex}}=0.65$

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