You have been given the following information:

$\backslash$table$[[$State of$,\backslash$table$[[$Probability of$],[$State of$],[$Economy$]],,$Rate of Return if$,$State Occurs$],[$Economy$,20,\mathrm{.}05,$Stock B$,],[$Recession$,\mathrm{.}55,\mathrm{.}08,-18,],[$Normal$,\mathrm{.}25,\mathrm{.}13,\mathrm{.}11,],[$Boom$,25,\mathrm{.}28,,]]$

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