You’ve observed the following returns on Crash-n-Burn Computer’s stock over the past five years: 14 percent, –9 percent, 16 percent, 21 percent, and 3 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? (Round your answer to 5 decimal places. (e.g., 32.16161))

Variance

b-2. What was the standard deviation of Crash-n-Burn’s returns over this period? (Do not round intermediate calculations and round your final answer to 2 decimal places. (e.g., 32.16))

Standard deviation %