Problem $13-7$ Calculating Returns and Standard Deviations $[$LO$1]$

Consider the following information:

$\backslash$table$[[,,$Rate of Return if State Occurs$],[$State of Economy,Probability of State,,$],[$of Economy,Stock A$,$Stock B$,],[$Recession$,\mathrm{.}19,\mathrm{.}10,-\mathrm{.}14],[$Normal$,\mathrm{.}60,\mathrm{.}13,\mathrm{.}15],[$Boom$,\mathrm{.}21,\mathrm{.}18,\mathrm{.}32]]$

a$.$ Calculate the expected return for Stocks A and B$.($Do not round intermediate calculations and enter your answers as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$

b$.$ Calculate the standard deviation for Stocks A and B$.($Do not round intermediate calculations and enter your answers as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$

$\backslash$table$[[$a$.$ Stock A expected return,,$\%$