Ten annual returns are listed in the following table: - 19.4% 16.4% 18.4% -49.3% 43.1% 1.9% -16.5% 45.8% 45.2% -3.2% 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.)