TU A stock has an average return of 12.5 percent and a standard deviation of 3.3 percent. What range of returns would you expect to see 95 percent of the time on this security? 9.2 percent to 15.8 percent 2.6 percent to 22.4 percent 5.9 percent to 19.1 percent -0.7 percent to 25.7 percent Assume large company stocks returned 13.4 percent on average over the past 10 years. The risk premium on these stocks was 9.2 percent. What was the average risk-free rate of return for those 10 years? O 3.2 percent 5.4 percent O2.6 percent 4.2 percent