Question $86$: Asset Allocation and Leverage $[24$ Points$]$

Suppose that Elena has a choice between two asets: Macerich Compaty $($bcker nymbok MAC$)($a nisiy asset$)$ and treasry bills $($a rik$-$free asset$).$

$\backslash$table$[[$Investment$,$Evpected Return $[E(r),$Standard Deviaties $(6),$Portiolis Weight$],[$MAC $($Risky Asset$),12\mathrm{.}77\%,19\mathrm{.}45\%,y$