A pension fund manager is considering three mutual funds. The first is a stock fund, the second is a longterm government and corporate bond fund, and the third is a Tbill 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)	15%	32 %
Bond Fund (B)	9%	23%

The correlation between the fund returns is .15. What is the expected return and standard deviation for the minimumvariance portfolio of the two risky funds? (Do not round intermediate calculations. Round your answers to 2 decimal places.)

Please do this problem by hand so i understand each step. I am particularily confused with COV(Rs ,Rb )