options for 1: 11.90% 12.50% 10.90% 10.00% 8.10%

options for 2 part a : 0.02280 0.02358 0.01824 0.02075 0.01847

options for 2 part b: 17.97% 15.10% 15.36% 13.51% 12.23%

You've observed the following returns on Crash-n-Burn Computer's stock over the past five years: 3 percent, 12 percent, 27 percent, 19 percent, and 13 percent. Requirement 1: What was the arithmetic average return on Crash-n-Burn's stock over this flve year period? Requirement 2: (a) What was the variance of Crash-n-Burn's returns over this period? (Do not round intermediate calculations.) (b)What was the standard deviation of Crash-n-Burn's returns over this period? (Do not round intermediate calculations.)