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: expected return standard deviation stock fund (s) 17% 32% bond fund (b) 11% 23% the correlation between the fund returns is 0.30. rev: 11 15 2021 qc cs-285530