Use the following scenario analysis for stocks A and B to answer the following questions: Normal Bear market market Bull market Probability 0.25 0.5 0.25 Stock A -21% 17% 45% Stock B -16% 20% 11% a. what are the expected returns for stocks A and B? b. what are the standard deviations of returns on stocks A and B? c. Assume that your portfolio of $20,000 was split $12,000 in stock A and the remainder in stock B. What is the expected return of the portfolio