$\backslash$table$[[,$Ptate of$,,$Rate of Return If State Occurs$],[$Economy$,\backslash$table$[[$Probability of$],[$State of Economy$]],$Stock A$,$Stock B$,$Stock C$,],[$Boom$,\mathrm{.}75,\mathrm{.}08,\mathrm{.}17,\mathrm{.}24,],[$Bust$,\mathrm{.}25,\mathrm{.}11,-\mathrm{.}05,-\mathrm{.}08,]]$

What is the expected return and standard deviation of a portfolio with $20$ percent invested in A$,20$ percent in $B$ and $60$ percent in C$?$