Problem $11-7$ Calculating Returns and Standard Deviations $[$LO $1]$

Consider the following information:

$\backslash$table$[[,$Probability of$,$Rate of Return if$,$State Occurs$],[$Economy$,$State of Economy,Stock A$,$Stock B$],[$Recession$,\mathrm{.}24,\mathrm{.}055,-\mathrm{.}44],[$Normal$,\mathrm{.}64,\mathrm{.}135,\mathrm{.}34],[$Boom$,\mathrm{.}12,\mathrm{.}330,\mathrm{.}57]]$

a$.$ Calculate the expected return for the two stocks.

Note: Do not round intermediate calculations and enter your answers as a percent rounded to $2$ decimal place

b$.$ Calculate the standard deviation for the two stocks.

Note: Do not round intermediate calculations and enter your answers as a percent rounded to $2$ decimal place