4: portfolio standard deviation , portfolio return

calucalet

\begin{tabular}{|l|r|r|r|r|r|} \hline \multicolumn{1}{|c|}{ Company } & date & \multicolumn{1}{c|}{ shares } & price & portfolio \% & \multicolumn{1}{|c|}{ value } \\ \hline STC & 2/10/22 & 5076 & BHD 39.400 & 20% & BHD 200,000.000 \\ \hline ARAMCO & 2/10/22 & 4196 & BHD 35.750 & 15% & BHD 150,000.000 \\ \hline SAUDI CERAMICS & 2/10/22 & 5025 & BHD 39.800 & 20% & BHD 200,000.000 \\ \hline SADAFCO & 2/10/22 & 1025 & BHD 195.200 & 20% & BHD 200,000.000 \\ \hline DALLAH HEALTH & 2/10/22 & 1077 & BHD 157.800 & 17% & BHD 170,000.000 \\ \hline Total & & & & 92% & BHD 920,000.000 \\ \hline & & & 8% & BHD 80,000.000 \\ \hline \multicolumn{3}{|c|}{ Cash } & & 100% & BHD 1,000,000.000 \\ \hline \end{tabular} \begin{tabular}{|l|r|r|r|r|r|} \hline \multicolumn{1}{|c|}{ Company } & date & \multicolumn{1}{c|}{ shares } & price & portfolio \% & \multicolumn{1}{|c|}{ value } \\ \hline STC & 2/10/22 & 5076 & BHD 39.400 & 20% & BHD 200,000.000 \\ \hline ARAMCO & 2/10/22 & 4196 & BHD 35.750 & 15% & BHD 150,000.000 \\ \hline SAUDI CERAMICS & 2/10/22 & 5025 & BHD 39.800 & 20% & BHD 200,000.000 \\ \hline SADAFCO & 2/10/22 & 1025 & BHD 195.200 & 20% & BHD 200,000.000 \\ \hline DALLAH HEALTH & 2/10/22 & 1077 & BHD 157.800 & 17% & BHD 170,000.000 \\ \hline Total & & & & 92% & BHD 920,000.000 \\ \hline & & & 8% & BHD 80,000.000 \\ \hline \multicolumn{3}{|c|}{ Cash } & & 100% & BHD 1,000,000.000 \\ \hline \end{tabular}