please show work answer question 10 using question 9

and Variability You've observed the following returns on Yasmin the past five years: 19 percent, -13 percent, 7 percent, 25 percent, and 16 percent. e arithmetic average return on the company's stock over this five-year period? Corporation a. What was the the variance of the company's stock returns over this period? The standard devation? ating Real Returns and Risk Premiums in Problem 9, suppose the average infation rate over riod was 2.6 percent and the average T-bill rate over the period was 3.25 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? tinn in nrnhlem 10, what was the average reali risk-free rat