Ten annual returns are listed in the following table: - 16.8% 45.8% 44.7% -3.4% - 19.3% 16.9% 17.9% 49.7% 43.8% Click on the following icon to copy the data into a spreadsheet.( 9 1.3% ) 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. The arithmetic average return over the 10-year period is (Round to four decimal places.)