Mega Corporation has the following returns for the past three years: $7$ percent, $12$ percent, and $11$ percent. Use the following formulas to calculate the variance of the returns and the standard deviation of the returns:

Variance $(tilde(r{)}_m)=$ expected value of $(tilde(r{)}_m-r_m{)}^2$

Standard deviation of widetilde$(r{)}_m=\sqrt[\phantom{2}]{\text{v}\text{a}\text{r}\text{i}\text{a}\text{n}\text{c}\text{e}(widetilde(r{)}_m)}$

Multiple Choice

$44\mathrm{.}00$ and $7\mathrm{.}70$ percent

$96\mathrm{.}00$ and $10\mathrm{.}80$ percent

$5\mathrm{.}00$ and $2\mathrm{.}16$ percent

$18\mathrm{.}00$ and $10\mathrm{.}00$ percent