$\backslash$table$[[,,$Rate of Return if State Occurs$],[$State of Economy,$\backslash$table$[[$Probability of State$],[$of Economy$]],$Stock A$,$Stock B$],[$Recession$,\mathrm{.}15,\mathrm{.}06,-\mathrm{.}19],[$Normal$,\mathrm{.}60,\mathrm{.}09,\mathrm{.}10],[$Boom$,\mathrm{.}25,\mathrm{.}14,\mathrm{.}27]]$

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,,$\%$