What are the arithmetic and geometric average returns for a stock with annual returns of 22 percent, 9 percent, -7 percent, and 13 percent? Multiple Choice 8.73%; 9.25% 12.61%; 9.25% 9.25%; 12.61% O 12.61%; 8.73% 9.25%; 8.73% Over a certain period, large-company stocks had an average return of 12.54 percent, the average risk-free rate was 2.57 percent, and small-company stocks averaged 17.41 percent. What was the risk premium on small-company stocks for this period? Multiple Choice 9.97% 14.84% O 4.87% 11.87% O 19.98%