Consider the following information about three stocks: a-1. If your portfolio is invested 40% each in A and B and 20% in C. what is the portfolio expected return? (Do not round Intermedlate calculations. Enter the onswer as a percent rounded to 2 declmal ploces.) Portfolio expected return % a-2. What is the variance? (Do not round Intermedlate calculatlons. Round the flnal onswer to 8 decimal places.) Variance a-3. What is the standard deviation? (Do not round Intermedlate calculatlons. Enter the onswer as a percent rounded to 2 declmal places.) Standard deviation % b. If the expected T-bill rate is 4.20%, what is the expected risk premium on the portfolio? (Do not round Intermedlate calculatlons. Enter the answer as a percent rounded to 2 declmal places.) Expected risk premium % c-1. If the expected inflation rate is 2.20%, what are the approximate and exact expected real returns on the portfolio? (Do not round Intermedlate colculatlons. Enter the answers as a percent rounded to 2 declmal places.) c-2. What are the approximate and exact expected real risk premiums on the portfolio? (Do not round Intermedlate colculatlons. Enter the answers as a percent rounded to 2 declmal places.)