The following table shows the expected return of 3 stocks: X, Y, Z given three possible states of the economy. The last row shows the probability of each state. Assuming you invest 20% of your portfolio in stock X, 50% in stock Y, and 30% in stock Z, what is your portfolios expected return? Good economy Average economy Poor economy Stock X return 18% 11% -10% Stock Y return 9% 7% 4% Stock Z return 6% 9% 13% Probability of state 0.2 0.7 0.1