There is a $23\mathrm{.}32\%$ probability of a below$-$average economy and a $76\mathrm{.}68\%$ probability of an average economy. If there is a below$-$average economy, Stocks A and B will have returns of $3\mathrm{.}12\%$ and $3\mathrm{.}67\%,$ respectively. If there is an average economy, Stocks A and B will have returns of $19\mathrm{.}28\%$ and $5\mathrm{.}89\%,$ respectively. Compute the following for Stocks A and B: $($Please write all answers as percentages $($e$.$g$.\mathrm{.}1234$ should be written as $12\mathrm{.}34)$:

Stock A Expected Return:

$\%$

Stock B Expected Return:

$\%$

Stock A Standard Deviation:

$\%$

Stock B Standard Deviation:

$\%$