Thank you for taking the time to answer these questions I will make sure to give a thumps up rating.

A stock had returns of 6 percent, -22 percent, 18 percent, 12 percent, and -2 percent over the past five years. What is the standard deviation of these returns? Multiple Choice O 18.74 percent O 15.52 percent O 13.49 percent O 10.21 percent O 11.68 percent You've observed the following returns on Crash-n-Burn Computer's stock over the past five years: 10 percent, 11 percent, 18 percent, 19 percent, and 10 percent. a. What was the arithmetic average return on Crash-n-Burn's stock over this five-year period? (Do not round intermediate calculations. Enter your answer as a percent rounded 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? (Do not round intermediate calculations and 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. Enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Standard deviation %