You are given the following stock return information for years through indus) which are: 17.22.15 and to respectively compute the arithmetic average return variance of returns, and the standard deviation of the return 15.00, 0.04000, and 6.000 12.00%, 0.06000, and 10.00 9.00, 0.02000 and 2.02% 0 22.00 0.16800 and 7.22 8.40m, 0.02023. and 14.22