Ten annual returns are listed in the following table: - 19.2% 16.5% 17.6% - 49.5% 43.6% 1.6% - 16.4% 46.4% 45.3% - 3.2% ) Click on the following icon to copy the data into a spreadsheet.( 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.)