Q. Portfolios with more than one asset:
Given returns also probabilities for three possible states listed here, compute covariance between returns of Stock A also Stock B. For convenience, assume that expected returns of Stock A also Stock B are 11.75 percent also 18 percent, respectively.
Probability Return (A) Return (B)
Good 0.35 0.30 0.50
OK 0.50 0.10 0.10
Poor 0.15 -0.25 -0.30