as soon as possible and not on excel

QUESTION 4 The following are possible states of the economy and the returns associated with stocks A and B in those states. Probability Return on A State on B Return 0.25 24% Good 30% Normal 0.4 36% 18% 0135 48% Bad -6% Calculate the expected return and the standard deviation of a portfolio comprised of stocks A and B. The weight in stock A is 40%. B Ti