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What percent of the men have a total cholesterol level

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Reference no: EM132501600

1.). The total cholesterol levels of a sample of men aged? 35-44 are normally distributed with a mean of 212 milligrams per deciliter and a standard deviation of 38.9 milligrams per deciliter.

?(a) What percent of the men have a total cholesterol level less than 225 milligrams per deciliter of? blood?

?(b) If 260 men in the? 35-44 age group are randomly? selected, about how many would you expect to have a total cholesterol level greater than 270

2.) Use the normal distribution of fish lengths for which the mean is 9 inches and the standard deviation is 4 inches. Assume the variable x is normally distributed.

(a) What percent of the fish are longer than 11 ?inches?

(b) If 500 fish are randomly? selected, about how many would you expect to be shorter than 6 ?inches?

Reference no: EM132501600

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