Consider the following information:

$\backslash$table$[[,,$Rate of Return if State Occurs$],[$State of Economy,$\backslash$table$[[$Probability of State$],[$of Economy$]],$Stock $A,$Stock B$],[$Recession$,\mathrm{.}17,\mathrm{.}05,-\mathrm{.}21],[$Normal$,\mathrm{.}62,\mathrm{.}09,\mathrm{.}08],[$Boom$,\mathrm{.}21,\mathrm{.}16,\mathrm{.}25]]$

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