9)  The total cholesterol levels of a sample of men aged 35-44 are normally distributed with a mean of 

211 milligrams per deciliter and a standard deviation of 38.3 milligrams per deciliter. (a) What percent of the men have a total cholesterol level less than 237 milligrams per deciliter of blood? (b) If 250 men in the 35-44 age group are randomly selected, about how many would you expect to have a total cholesterol level greater than 255 milligrams per deciliter of blood?

(a) The percent of the men that have a total cholesterol level less than 237 milligrams per deciliter of blood is [  ] %. (Round to two decimal places as needed.)

(b) Of the 250 men selected, nothing would be expected to have a total cholesterol level greater than 255 milligrams per deciliter of blood. [   ]    (Round to the nearest integer as needed.)

10) A horse race has 10 entries and one person owns 22 of those horses. Assuming that there are no ties, what is the probability that those two
horses finish first and second?

The probability that the two horses finish first and second is [   ]

(Round to four decimal places as needed.)

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