Using the information below, calculate the variance, correlation, and portfolio return $($if the portfolio is made up of equal investments in both stocks$).$

$[5$ marks$]$

$\backslash$table$[[,$Stock X$,],[$Year End,Realized Return,Stock Y$],[2018,20\mathrm{.}1\%,$Realized Return$],[2019,72\mathrm{.}7\%,-14\mathrm{.}6\%$