A stock had returns of 15 percent, -9 percent, 22 percent, 18 percent, and 6 percent in the last five years. Calculate the arithmetic and geometric average rates of return, respectively, of the stock.
10.40 percent; 9.47 percent
10.40 percent; 9.81 percent
11.90 percent; 9.47 percent
10.40 percent; 8.72 percent