Problem 10-11 Question Help Ten annual returns are listed in the following table: (Click on the following icon , in order to copy its contents into a spreadsheet.) - 19.7% 16.3% 17.8% - 49.9% 43.6% 1.3% - 16.2% 46.1% 44.5% - 3.8% 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 four decimal places.)