The following are possible states of the economy and the returns associated with stocks A and B in those states. State Probability Return on A Return on B Good 0.3 24% 30% Normal 0.4 36% 18% Bad 0.3 48% -6% Calculate 1) covariance 2) coefficient 3) the expected return of the portfolio consisting of A & B The weight in stock A is 60%. 4) the standard deviation of a portfolio comprised of stocks A and B. The weight in stock A is 60%.