Find the standard deviation for a security that has three one$-$year returns of $-1\%,8\%,$ and $16\%$ respectively$\mathrm{.}06\mathrm{.}94\%10\mathrm{.}00\%4\mathrm{.}82\%8\mathrm{.}33\%5\mathrm{.}79\%$