Recall from Exercise 6.32 that yearly returns on common stocks are normally distributed with a mean of

Question:

Recall from Exercise 6.32 that yearly returns on common are normally distributed with a mean of 12.4 percent and a standard deviation of 20.6 percent.
a. What percentage of yearly returns are at or below the 10th percentile of the of yearly returns? What percentage are at or above the l0th percentile? Find the 10th percentile of the of yearly returns.
b. Find the first quartile. Q1 and the third quartile. Q3 of the of yearly returns. Stocks
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