Stack X has a standard deviation of retum of $10$ percent Stock $Y$ has a standard deviation of return of $15$ percent. The correlation coefficient between wo stocks $150\mathrm{.}5.$ If you invest $60$ percent of your funds in Stock $x$ and $40$ percent in Stock $Y,$ what is the standard deviation of your portfolio?

Mustijok Chotce

$8\mathrm{.}5$ percent

$19\mathrm{.}2$ percent

$10\mathrm{.}4$ percent

$13\mathrm{.}0$ percent