Answer:
Expected return = 9%
Explanation:
A portfolio is a collection of assets/ investment. The expected return on the stock would be the weighted average of all the return of the possible return weighted according to their probability.
Expected return on portfolio:
E(R) =( Wa*Ra) + (Wb*Rb) + (Wc*Rc)
R- possible return,W- probability
E(R) = (30%× 0.25) + (12%× 0.5) + (-18%× 0.25) = 9 %
Expected return = 9%
Note that the negative sign in the last possible return implies a loss.