P12-9 Calculating Returns and Variability [LO1]

Youve observed the following returns on Crash-n-Burn Computers stock over the past five years: 4 percent, 11 percent, 25 percent, 19 percent, and 14 percent.

What was the arithmetic average return on the company's stock over this five-year period?

What was the variance of the company's returns over this period?

What was the standard deviation of the companys returns over this period?

rev: 09_20_2012