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

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Statistics

The total cholesterol levels of a sample of men aged​ 35-44 arenormally distributed with a mean of

223

milligrams per deciliter and a standard deviation of

37.2

milligrams per deciliter.​(a) What percent of the men have atotal cholesterol level less than

228

milligrams per deciliter of​ blood?​(b) If

251

men in the​ 35-44 age group are randomly​ selected, about howmany would you expect to have a total cholesterol level greaterthan 259

milligrams per deciliter of​ blood?​(a) The percent of the menthat have a total cholesterol level less than

228

milligrams per deciliter of blood is

nothing​%.

​(Round to two decimal places as​ needed.)

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