this question has many parts

State of Economy Rate of Return it State Occurs Probability of State of Economy Stock A Stock B Stock . 20 -25 .25 .11 -16 -15 -20 -.03 -.13 20 -.17 -.28 .11 BOOM Good Poor Bust a. Your portfolio is invested 30 percent each in Stocks A and Cand 40 percent in Stock B. What is the expected return of the portfolio (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) Expected retur ^ b-1. What is the variance of this portfolio? (Do not round intermediate calculations. Round your answer to 5 decimal places.) Varlance b-2. What is the standard deviation? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) Standard deviation