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The total cholesterol levels of a sample of men aged​ 35-44 are normally distributed with a...

The total cholesterol levels of a sample of men aged​ 35-44 are normally distributed with a mean of 204 milligrams per deciliter and a standard deviation of 38.1 milligrams per deciliter. ​(a) What percent of the men have a total cholesterol level less than 232 milligrams per deciliter of​ blood? ​(b) If 248 men in the​ 35-44 age group are randomly​ selected, about how many would you expect to have a total cholesterol level greater than 257 milligrams per deciliter of​ blood?

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