Instructions

There are two assets and three states of the economy:

$\backslash$table$[[$Rate of Return if State Occurs$],[\backslash$table$[[$State of$],[$Economy$]],\backslash$table$[[$Probability of State$],[$of Economy$]],$Stock A$,$Stock B$],[$Recession$,0\mathrm{.}20,-0\mathrm{.}15,0\mathrm{.}20],[$Normal$,0\mathrm{.}50,0\mathrm{.}20,0\mathrm{.}30],[$Boom$,0\mathrm{.}30,0\mathrm{.}60,0\mathrm{.}40]]$

What are the expected returns and standard deviations for these two stocks?