A fund manager is considering three mutual funds. The first is a stock fund, the second is a long$-$term bond fund, and the third is a money market fund that provides a safe return of $8\%.$ The characteristics of the risky funds are as follows

$\backslash$table$[[,$Expected Return,Standard Deviation$],[$Stock Fund,$20\%,30\%$

Answer questions $1,2$ and $3.$