A pension fund manager is considering three mutual funds for investment. The first one is a stock fund, the second is a bond fund and the third is a money market fund. The money market fund yields a risk$-$free return of $4\%.$ The inputs for the risky funds are given in the following table.

$\backslash$table$[[$Fund$,$Expected Return,Standard Deviation$],[$Stock fund,$14\%,26\%$