onsider the following information about three stocks: rate of return if state occurs state of probability of economy state of economy stock a stock b stock c boom .25 .21 .33 .55 normal .60 .17 .11 .09 bust .15 .00 − .21 − .45 a-1. if your portfolio is invested 40 percent each in a and b and 20 percent in c, what is the portfolio expected return? (do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) a-2. what is the variance? (do not round intermediate calculations and round your answer to 5 decimal places, e.g., .16161.) a-3. what is the standard deviation? (do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) b. if the expected t-bill rate is 3.80 percent, what is the expected risk premium on the portfolio? (do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) c-1. if the expected inflation rate is 3.30 percent, what are the approximate and exact expected real returns on the portfolio? (do not round intermediate calculations and enter your answers as a percent rounded to 2 decim