Just need answers for Question #10.

9. Calculating Returns and Variability You've observed the following returns on SkyNet Data Corporation's stock over the past five years: 19 percent, 24 percent, 11 percent, -9 percent, and 13 percent. a. What was the arithmetic average return on the company's stock over this 5-year period? b. What was the variance of the company's returns over this period? The standard devi- ation? 10. Calculating Real Returns and Risk Premiums In Problem 9, suppose the average inflation rate over this period was 3.6 percent and the average T-bill rate over the period was 4.1 percent. a. What was the average real return on the company's stock? b. What was the average nominal risk premium on the company's stock