Calculating Returns and Variability [LO1] You've observed the following returns on Crash-n-Burn Computer's stock over the past five years: 7percent, -13 percent, 21 percent, 34 percent and 15 percent.
a. What was the arithmetic average return on Crash-n-Burn's stock over this five year period?
b. What was the variance of Crash-n-Burn's returns over this period? The standard deviation?