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9. Assume the weights of men are normally distributed with a mean of 170 lbs and a standard deviation of 30 lbs. Show all work.

9. Assume the weights of men are normally distributed with a mean of 170 lbs and a standard deviation of 30 lbs. Show all work. Just the answer, without supporting work, will receive no credit.

(a) Find the 75th percentile for the distribution of men's weights.

(b) What is the probability that a randomly selected man weighs more than 200 lbs?

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