Youve observed the following returns on Crash-n-Burn Computers stock over the past five years: 4 percent, 13 percent, 29 percent, 16 percent, and 16 percent.

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

10.40%, 13.00%, 12.38%, 11.34%, 8.42

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

0.02493, 0.02578, 0.01994, 0.02269, 0.02019

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

15.79%, 16.05%, 14.12%, 18.79%, 12.79%