There is a $33\mathrm{.}70\%$ probability of an average economy and a $66\mathrm{.}30\%$ probability of an above average economy. You invest $33\mathrm{.}90\%$ of your money in Stock S and $66\mathrm{.}10\%$ of your money in Stock T$.$ In an average economy the expected returns for Stock S and Stock T are $5\mathrm{.}70\%$ and $8\mathrm{.}90\%,$ respectively. In an above average economy the the expected returns for Stock S and T are $14\mathrm{.}20\%$ and $39\mathrm{.}00\%,$ respectively. What is the expected return for this two stock portfolio?