If we assume that the annual return on common stocks are normally distributed, then approximately 95% of the returns will fall within the range % if the average historical return is 13.2% with a standard deviation of 20.3%. Multiple Choice -27.4 to 53.8 -27.4 to 33.5 -71 to 33.5 71 to 33.5 -5.1 to 45.7