estion list K Question 11 ata table 13 The last four years of returns for a stock are as follows: a. What is the average annual return? b. What is the variance of the stock's returns? c. What is the standard deviation of the stock's returns? 1 2 3 -4.26% +27.69% + 11.92% 4 + 4.08% rn? (Round to k's returns? is