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$,20,\mathrm{.}05,-18],[$Normal$,\mathrm{.}55,\mathrm{.}08,\mathrm{.}11],[$Boom$,\mathrm{.}25,\mathrm{.}13,\mathrm{.}28]]$

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,$\%$