Mathematics

Mathematics, 24.09.2019 02:30, kayleenfifep3hgi4

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?

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