Youve observed the following returns on Crash-n-Burn Computers stock over the past five years: 19 percent, 13 percent, 16 percent, 21 percent, and 10 percent.

You've observed the following returns on Crash-n-Burn Computer's stock over the past five years: 19 percent, -13 percent, 16 percent, 21 percent, and 10 percent. a. What was the arithmetic average return on Crash-n-Burn's stock over this five-year period? (Round your answer to 1 decimal place. (e.g., 32.1)) your answer to 1 decimal place. (e.g., 32.1)) 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)) your final answer to 2 decimal places (e. 32.16) Standard deviation