Assume a two-stock portfolio with $500,000 in Ultra inc and $500,000 in Repo Men. calculate portfolio return and standard deviation.

\begin{tabular}{|l|r|r|r|r|r|r|} \hline \multicolumn{1}{|c|}{ Econ. } & Prob. & T-Bill & Ultra Inc & Repo & American Foam & Market portfolio \\ \hline Very week & 0.1 & 8% & 21% & 28% & 10% & 13% \\ \hline Below average & 0.2 & 8 & 4 & 15 & 10 & 1 \\ \hline Average & 0.4 & 8 & 30 & 0 & 7 & 15 \\ \hline Above average & 0.1 & 8 & 35 & 15 & 55 & 29 \\ \hline Strong & 0.2 & 8 & 50 & 20 & 30 & 43 \\ \hline \end{tabular}