The ABC Equity Fund has an expected return E$[$r$]$ of $12\mathrm{.}160\%$ and a standard deviation $\backslash$sigma of $17\%.$ The ZQR Bond Fund has and expected return E$[$r$]$ of $2\mathrm{.}120\%$ and a standard deviation $\backslash$sigma of $12\%.$ The correlation coefficient $(\backslash$rho $)$ is $0\mathrm{.}17.$ A portfolio comprised of $25\%$ ABC and $75\%$ ZQRwould have a standard deviation of