Problem $13-7$ Calculating Returns and Standard Deviations $($LO$1)$Consider the following information: Rate of Return if State OccursState of EconomyProbability of State of EconomyStock AStock BRecession $0\mathrm{.}150\mathrm{.}090\mathrm{.}16$ Normal $0\mathrm{.}550\mathrm{.}180\mathrm{.}17$ Boom $0\mathrm{.}300\mathrm{.}210\mathrm{.}21$ Calculate the expected return for each stock. $($Do not round intermediate calculations. Round the final answers to $2$ decimal places.$)$ Expected returnStock A $\%$Stock B $\%$ Calculate the standard deviation for each stock. $($Do not round intermediate calculations. Round the final answers to $2$ decimal places.$)$ Standard deviationStock A $\%$Stock B $\%$