SOLUTION: Assume that cholesterol levels of men in the U.S. are normally distributed with a mean of 215 milligrams per deciliter and a standard deviation of 25 milligrams per deciliter. If y

Question 1176511: Assume that cholesterol levels of men in the U.S. are normally distributed with a mean of 215 milligrams per deciliter and a standard deviation of 25 milligrams per deciliter. If you randomly select a man in the U.S. What is the probability that his cholesterol level is between 227.5 and 240.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!


Hi
Normal Distribution:    μ = 215 mg/dl and    σ = 25 mg/dl 

Using Ti or similarly an inexpensive like a Casio fx-115 ES plus:
 
 P( 227.5 < x < 240) = normalcdf(227.5, 240, 25, 215) = .1499

Wish You the Best in your Studies.

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