You plan to invest in Stock X$,$ Stock Y$,$ or some combination of the two. The Suppose You plan to invest in Stock X$,$ Stock Y$,$ or some combination of the two. The expected

return for $x$ is $10\%$ and standard deviation for $x$ is $5\%.$ 'The expected return for $Y$ is $12\%$ and

the standard deviation for $Y6\%.$ The correlation cuefficient for $x$ and $Y$ is $0\mathrm{.}75.$ Calculate

the expected return and standard deviation for the portfolios for $100\%,75\%,50\%,25\%,$ and

$0\%$ in Stock X$.$

$r_p=x(r_x)+(1-x)(r_Y)$expected return for X is $10$ percent and sX $=5$ percent. The expected return for Y is $12$ percent and sY $=6$ percent. The correlation coefficient, rXY is $0\mathrm{.}75.$

Calculate rp and sp for $100$ percent, $75$ percent, $50$ percent, $25$ percent, and $0$ percent in Stock X$.$