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Your portfolio has a beta of 1. The portfolio consists of 15 percent U. Treasury bills, 31 percent in stock A, and 54 percent in stock B.
Your portfolio has a beta of 1.24. The portfolio consists of 15 percent U.S. Treasury bills, 31 percent in stock A, and 54 percent in stock B. Stock A has a risk-level equivalent to that of the overall market. What is the beta of stock B?