Consider the following information: rate of return if state occurs state of probability of economy state of economy stock a stock b stock c boom .10 .35 .40 .27 good .60 .16 .17 .08 poor .25 − .01 − .03 − .04 bust .05 − .12 − .18 − .09 a. your portfolio is invested 30 percent each in a and c, and 40 percent in b. what is the expected return of the portfolio? (do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e. g., 32.16.) b-1. what is the variance of this portfolio? (do not round intermediate calculations and round your answer to 5 decimal places, e. g., .16161.) b-2. 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.)