The last four years of returns for a stock are as shown here: 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? Note: Notice that the average return and standard deviation must be entered in percentage format. The variance must be entered in decimal format. i X Data Table (Click on the following icon in order to copy its contents into a spreadsheet.) Year 3 4 1 - 3.8% 2 + 27.6% Return + 11.8% + 3.6% Print Done