Consider the following information on three stocks in four possible future states of the economy: (8 marks) a. Your portfolio is invested 30% in A, 50% in B, and 20% in C. What is the expected return of your portfolio? (5 marks) b. What is the variance of this portfolio? (2 marks) C. What is the standard deviation of this portfolio? (1 mark) Consider the following information on three stocks in four possible future states of the economy: (8 marks) a. Your portfolio is invested 30% in A, 50% in B, and 20% in C. What is the expected return of your portfolio? (5 marks) b. What is the variance of this portfolio? (2 marks) C. What is the standard deviation of this portfolio? (1 mark)