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 a. What is the average annual return? The average return is 1%. (Round to two decimal places.) b. What is the variance of the stock's returns? The variance of the returns is 1 (Round to five decimal plad X Data Table (Click on the following icon in order to copy its contents into a spreadshool) Year Return 1 -3.8% 2 +28.2% 3 + 12.4% 4 +3.7% c. What is the standard deviation of the stock's returns? Print The standard deviation is %. (Round to two decimal place Done