The last four years of returns for a stock are as shown here: LOADING.... 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. Question content area bottom Part 1 a. What is the average annual return? The average return is enter your response here%. (Round to two decimal places.) Part 2 b. What is the variance of the stock's returns? The variance of the returns is enter your response here. (Round to five decimal