Consider the following information about three stocks: State ofEconomyProbability of State of EconomyRate of Return if State OccursStock AStock BStock CBoom $0\mathrm{.}200\mathrm{.}380\mathrm{.}500\mathrm{.}50$ Normal $0\mathrm{.}550\mathrm{.}160\mathrm{.}140\mathrm{.}12$ Bust $0\mathrm{.}250\mathrm{.}000\mathrm{.}300\mathrm{.}50$ a$-1.$ If your portfolio is invested $30\%$ each in A and B and $40\%$ in C$,$ what is the portfolio expected return? $($Do not round intermediate calculations. Enter the answer as a percent rounded to $2$ decimal places.$)$ Portfolio expected return $9\mathrm{.}62\%$ a$-2.$ What is the variance? $($Do not round intermediate calculations. Round the final answer to $8$ decimal places.$)$ Variance $0\mathrm{.}06530$ a$-3.$ What is the standard deviation? $($Do not round intermediate calculations. Enter the answer as a percent rounded to $2$ decimal places.$)$ Standard deviation $25\mathrm{.}55\%$ b$.$ If the expected T$-$bill rate is $3\mathrm{.}70\%,$ what is the expected risk premium on the portfolio? $($Do not round intermediate calculations. Enter the answer as a percent rounded to $2$ decimal places.$)$ Expected risk premium $5\mathrm{.}92\%$ c$-1.$ If the expected inflation rate is $2\mathrm{.}60\%,$ what are the approximate and exact expected real returns on the portfolio? $($Do not round intermediate calculations. Enter the answers as a percent rounded to $2$ decimal places.$)$ Approximate expected real return$7\mathrm{.}02\%$Exact expected real return$6\mathrm{.}84\%$ c$-2.$ What are the approximate and exact expected real risk premiums on the portfolio? $($Do not round intermediate calculations. Enter the answers as a percent rounded to $2$ decimal places.$)$ Approximate expected real risk premium$3\mathrm{.}32\%$Exact expected real risk premium$0\mathrm{.}92\%$