Consider the following information:

$\backslash$table$[[$Economy$,\backslash$table$[[$Probability of$],[$State$],[$of Economy$]],$Rate of Return if State Occurs$],[$Stock A$,$Stock B$],[$Recession$,\mathrm{.}20,\mathrm{.}010,-\mathrm{.}25],[$Normal$,\mathrm{.}55,\mathrm{.}090,\mathrm{.}15],[$Boom$,\mathrm{.}25,\mathrm{.}140,\mathrm{.}38]]$

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$.,32\mathrm{.}16.)$