There is a 23.40% probability of an average economy and a 76.60% probability of an above average economy. You invest 33.30% of your money in Stock S and 66.70% of your money in Stock T. In an average economy the expected returns for Stock S and Stock T are 11.50% and 12.00%, respectively. In an above average economy the the expected returns for Stock S and T are 38.50% and 23.90%, respectively. What is the expected return for this two stock portfolio?