Using the exel I upload, please find mean$-$variance efficient portfolio with target return $0\mathrm{.}5\%,$ and answer the following questions #$1$ and #$2.$

#$1$ What is the standard deviation of the mean$-$variance portfolio?

#$2$ What are the weights of the mean$-$variance efficient portfolio?

$-0\mathrm{.}2737726$

$0\mathrm{.}2558517$