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The average employee in the U.S.A. spends μ = 23 minutes commuting to work each day....

The average employee in the U.S.A. spends μ = 23 minutes commuting to work each day. Assume that the distribution of commute times is normal with a standard deviation of σ = 8 minutes.

(a) What proportion of U.S. employees spend less than 15 minutes a day commuting?


(b) What is the probability of randomly selecting an employee who spends more than 35 minutes commuting each day?

math   Statistics-And-Probability   
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Answer #1

D a Saluton Given that u:23 P(2 ニ01581 b) P(x735 35-23 О: 0668 robability: 0.0668

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