You've observed the following returns on Crash-n-Burn Computer's stock over the past five years: 5 percent, 14 percent, 25 percent, 14 percent, and 17 percent. What was the arithmetic average return on the company's stock over this five-year period? Answer is complete but not entirely correct. What was the variance of the company's returns over this period? What was the standard deviation of the company's returns over this period