Variance, please.

Consider the following information: Rate of Return If State Occurs State of Economy Probability of State of Economy Stock A Stock B Stock C Boom 15 .39 .49 .29 Good 55 15 .20 .08 Poor 25 -.01 -.09 -.07 Bust .05 -.20 -.24 -.10 a. Your portfolio is invested 24 percent each in A and C, and 52 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.) 12.39 % a. Expected return b- Variance 278.22240 1. b- 16.68 Standard deviation 2. %