APT SCENERIES \begin{tabular}{|l|r|r|r|} \hline Scenery & Probability & \multicolumn{1}{l|}{ Return A } & Return B \\ \hline Recession & 20% & 3% & 8% \\ \hline Normal & 30% & 9% & 7% \\ \hline Boom & 50% & 15% & 5% \\ \hline \end{tabular} = \begin{tabular}{|l|r|r|r|} \hline Scenery & Probability & \multicolumn{1}{|l|}{ Return A } & \multicolumn{1}{l|}{ Return B } \\ \hline Recession & 30% & 2% & 1% \\ \hline Normal & 40% & 5% & 5% \\ \hline Boom & 30% & 10% & 8% \\ \hline \end{tabular} =