Calculating Returns and Standard

Deviations $[$ LO$1]$ Based on the following information, calculate the expected return and standard deviation for Stock A and Stock B:

$\backslash$table$[[\backslash$table$[[$State of$],[$Economy$]],\backslash$table$[[$Probability$],[$of$],[$State of$],[$Economy$]],\backslash$table$[[$Rate of$],[$Return if$],[$State Occurs$]]],[\backslash$table$[[$Stock$],[$A$]],\backslash$table$[[$Stock$],[$B$]]],[$Recession$,\mathrm{.}15,\mathrm{.}04,-\mathrm{.}17],[$Normal$,\mathrm{.}55,\mathrm{.}09,12],[$Boom$,30,17,\mathrm{.}27]]$