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%	34%
Bond fund (B)	11%	25%

The correlation between the fund returns is 0.15.

What is the standard deviation of your portfolio?

What is the proportion invested in the T-bill fund?