Ch $11$ Homework Problems $($i Soved $3$ Problem $11-9$ Returns and Standard Deviations $[$LO $1,2]$ Consider the following information: $10$ points eBook References State of Economy Probability of State of Economy Rate of Return if State Occurs Boom $\mathrm{.}69\mathrm{.}12$ A Stock B Stock C Bust $\mathrm{.}31\mathrm{.}06\mathrm{.}27$ a$.$ What is the expected return on an equally weighted portfolio of these three stocks? Note: Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.$ b$.$ What, is the variance of a portfolio invested $24$ percent each in A and B and $52$ percent in C $?$ Note: Do not round intermediate calculations and round your answer to $5$ decimal