Consider the following information about three stocks: a-1. If your portfolio is invested 30% each in A and B and 40% in C, what calculations. Enter the answer as a percent rounded to 2 decimal place Portfolio expected return % a-2. What is the variance? (Do not round intermediate calculations. Round the final answer to 8 decimal places.) Variance 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 % b. If the expected T-bill rate is 5.00%, what is the expected risk premium on the portfolio? (Do not round intermediate calculations. Enter the answer as a percent rounded 02 decimal places.) Expected risk premium % c-1. If the expected inflation rate is 3.00%, 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.) c-2. What are the approximate and exact expected real risk premiums on the portfolio? (Do not round intermediate colculations. Enter the answers as a percent rounded to 2 decimal places.) c-2. What are the approximate and exact expected real risk premiums Enter the answers as a percent rounded to 2 decimal places.)