You've observed the following returns on Crash-n-Burn Computer's stock over the past five years: 11 percent, -11 percent, 18 percent, 23 percent, and 10 percent.
a. What was the arithmetic average return on Crash-n-Burn's stock over this five-year period? Average return %
b-1. What was the variance of Crash-n-Burn's returns over this period? Variance
b-2. What was the standard deviation of Crash-n-Burn's returns over this period? Standard deviation %