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Required information [The following information applies to the questions displayed below.] A pension fund manager is considering three mutual funds. The first is a stock fund, the second is a long-term government and corporate bond fund, and the third is a T-bill money market fund that yields a sure rate of 5.5%. The probability distributions of the risky funds are: The correlation between the fund returns is 0.12 . Suppose now that your portfolio must yield an expected return of 13% and be efficient, that is, on the best feasible CAL (i.e., the optimal risky portfolio). Instructor Tip: Calculate the Optimal Risky Portfolio weights and then create your complete portfolio (use CH5 concepts) based on the targeted return. Required: a. What is the standard deviation of your portfolio? (Do not round intermediate calculations. Round your answer to 2 decimal places.) b-1. What is the proportion invested in the T-bill fund? (Do not round intermediate calculations. Round your answer to 2 decimal places.) b-2. What is the proportion invested in each of the two risky funds? (Do not round intermediate calculations. Round your answers to 2 decimal places.)