Consider the following information:

$\backslash$table$[[,,,$Rate of Return if State Occurs$],[$State of Economy,Probability of State of$,$Stock A$,$Stock B$],[$Recession$,0\mathrm{.}15,0\mathrm{.}17,-0\mathrm{.}21],[$Normal$,0\mathrm{.}55,0\mathrm{.}16,0\mathrm{.}18],[$Boom$,0\mathrm{.}30,0\mathrm{.}24,0\mathrm{.}23]]$

Calculate the expected return for each stock. $($Do not round intermediate calculations. Round the final answers to $2$ decimal places.$)$

$\backslash$table$[[,$Expected return$],[$Stock A$,15\mathrm{.}20],[$Stock B$,15\mathrm{.}37]]$

Calculate the standard deviation for each stock. $($Do not round intermediate calculations. Round the final answers to $2$ decimal places.$)$

$\backslash$table$[[$Stock A$,\backslash$table$[[$Standard$],[$deviation$]]],[$Stock B$,\%$N