A stock had the following annual returns: $-11\mathrm{.}06\%,8\mathrm{.}95\%,12\mathrm{.}98\%,$ and $13\mathrm{.}95\%.$ Compute the following for the stock:

Expected Return $($Please write your answer as a percentage $($e$.$g$.\mathrm{.}1234$ should be written as $12\mathrm{.}34))$:

$\%$

Variance $($Please write your answer with $4$ decimal places$)$:

Standard Deviation $($Please write your answers as a percentage $($e$.$g$.\mathrm{.}1234$ should be written as $12\mathrm{.}34))$: