The total cholesterol levels of a sample of men aged 35-44 are normally distributed with a mean of 221 milligrams per deciliter and a standard deviation of 36.6 milligrams per deciliter. (a) What percent of the men have a total cholesterol level less than 217 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 267 milligrams per deciliter of blood