Chapter 10: Financial Risk and Required Return 363 10.2 Stock A has an expected rate of return of 8 percent, a standard devia- tion of 20 percent, and a market beta of 0.5. Stock B has an expected rate of return of 12 percent, a standard deviation of 15 percent, and a market beta of 1.5. Which investment is riskier? Why? (Hint: Remem- ber that the risk of an investment depends on its context.) 10 1