The mean of the equal-weights portfolio is:

1. 0.0261
2. 0.0236
3. 0.0101
4. 0.0257
5. none of the above

\begin{tabular}{|c|c|c|c|c|c|c|c|c|c|c|c|} \hline & JNJ & DIS & KO & WMT & AGG & & & & & & \\ \hline MEAN & 0.0288 & 0.0395 & 0.0236 & 0.0285 & 0.0100 & & & & & & \\ \hline STD & 0.0681 & 0.1202 & 0.0674 & 0.0834 & 0.0166 & & & & & & \\ \hline STD & & \multicolumn{2}{|c|}{ Correlation matrix } & & & & & & & & \\ \hline 0.0681 & 1.0000 & 0.3800 & 0.4252 & 0.4582 & -0.0517 & & & & & & \\ \hline 0.1202 & 0.3800 & 1.0000 & 0.4913 & 0.3869 & -0.4022 & & & & & & \\ \hline 0.0674 & 0.4252 & 0.4913 & 1.0000 & 0.4800 & -0.0484 & & & & & & \\ \hline 0.0834 & 0.4582 & 0.3869 & 0.4800 & 1.0000 & 0.2316 & & & & & & \\ \hline \multirow[t]{2}{*}{0.0166} & -0.0517 & -0.4022 & -0.0484 & 0.2316 & 1.0000 & & & & & & \\ \hline & & \multicolumn{2}{|c|}{ Covariance matrix } & & & sum(whts) & \multicolumn{3}{|c|}{ Weighted Covariance Matrix } & & \\ \hline wghts & 0.2000 & 0.2000 & 0.2000 & 0.2000 & 0.2000 & 1.000000 & & & & & \\ \hline 0.2000 & 0.0046397 & 0.0031108 & 0.0019535 & 0.0026026 & 5.86E05 & & 0.0001856 & 0.0001244 & 7.814E05 & 0.0001041 & 2.34E06 \\ \hline 0.2000 & 0.0031108 & 0.014442 & 0.0039825 & 0.0038769 & -0.000804 & & 0.0001244 & 0.0005777 & 0.0001593 & 0.0001551 & 3.22E05 \\ \hline 0.2000 & 0.0019535 & 0.0039825 & 0.0045489 & 0.0026993 & 5.44E05 & & 7.814E-05 & 0.0001593 & 0.000182 & 0.000108 & 2.17E06 \\ \hline 0.2000 & 0.0026026 & 0.0038769 & 0.0026993 & 0.0069533 & 0.0003214 & & 0.0001041 & 0.0001551 & 0.000108 & 0.0002781 & 1.286E05 \\ \hline 0.2000 & 5.86E05 & -0.000804 & 5.44E05 & 0.0003214 & 0.000277 & & 2.34E06 & 3.22E05 & 2.17E06 & 1.286E05 & 1.108E05 \\ \hline & & & & & & & & & & & \\ \hline \end{tabular}