1. Please, compute mean returns, variances and covariance among the two assets of the IBEX35 and present the vector of returns and the matrix.

2. Outline the equation of portfolio returns mixing these two assets, as well as the equations for the expected returns and variances on these portfolios.

3. Compute the expected return and the variance of a portfolio combining Acciona (60%) and Mapfre (40%).

\begin{tabular}{|c|c|c|c|c|c|c|c|c|c|} \hline & \multicolumn{4}{|c|}{ Acciona } & \multicolumn{4}{|c|}{ Mapfre } & \multirow{2}{*}{CovariancesAcciona-Mapfre} \\ \hline Date & Price & Return & Dev & \( \begin{array}{c}\text { Dev } \\ \text { ^2 }\end{array} \) & Price & Return & Dev & \( \begin{array}{c}\text { Dev } \\ \text { ^2 }\end{array} \) & \\ \hline 15/10/21 & 83,76 & & & & 2,76 & & & & \\ \hline 18/10/21 & 77,21 & & & & 2,780 & & & & \\ \hline 19/10/21 & 48,66 & & & & 2,260 & & & & \\ \hline 20/10/21 & 42,53 & & & & 2,370 & & & & \\ \hline 21/10/21 & 60,36 & & & & 2,970 & & & & \\ \hline \multirow[t]{2}{*}{22/10/21} & 72,57 & & & & 3,530 & & & & \\ \hline & & & Sum & & & & Sum & & \\ \hline \end{tabular}