QUESTION 6 You have observed the following returns on Crash-n-Burn Computer's stock over the past five years: 14%, -9%, 16%, 21%, and 3%. 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 time period and what was the standard deviation? 21.00%, 0.33256, and 14% 14%, 0.060200, and 9.00% 9.00%, 0.01445, and 12.02% -7.00 %, 0.02889, 14% 8.00%, 0.06289.9.00%