Consider the following information:

$\backslash$table$[[,$Probability of State,Rate of Return if State Occurs$],[$State of Economy,of Economy,Stock A$,$Stock B$],[$Recession$,\mathrm{.}15,\mathrm{.}04,-\mathrm{.}15],[$Normal$,\mathrm{.}61,\mathrm{.}07,\mathrm{.}14],[$Boom$,\mathrm{.}24,\mathrm{.}12,\mathrm{.}31]]$

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,$\%$