Problem 11.7 Ten annual returns are listed in the following table: - 16.6% 45.6% 44.9% -3.1% 19.4% 16.2% 18.3% - 49.9% 43.7% Click on the following icon to copy the data into a spreadsheet.( 1.5% ) 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.)