For Problem 9, suppose the average inflation rate over this period was 3.1 percent and the average T-bill rate over the period was 3.9 percent. What was the average real return on the company’s stock? What was the average nominal risk premium on the company’s stock?

Data from problem 9

You’ve observed the following returns on Crash-n-Burn Computer’s stock over the past five years: 8 percent, −15 percent, 19 percent, 31 percent, and 21 percent. What was the arithmetic average return on the company’s stock over this five-year period? What was the variance of the company’s returns over this period? The standard deviation?