Ten annual returns are listed in the following table: (Click on the following icon in order to copy its contents into a spreadsheet.) a - 19.5% 16.5% 17.9% - 49.8% 43.2% 1.6% - 16.2% 45.9% 44.8% -3.1% a. What is the arithmetic average return over the 10-year period? b. What is the geometric average return over the 10-year period? c. If you invested $100 at the beginning, how much would you have at the end? ..... a. What is the arithmetic average return over the 10-year period? The arithmetic average return over the 10-year period is %. (Round to two decimal places.) . )