QUESTION $11$

Over the past $4$ years an investment returned $0\mathrm{.}1,-0\mathrm{.}12,-0\mathrm{.}08,$ and $0\mathrm{.}13.$ What is the standard deviation of returns? $($Note: input raw results with four decimal digits, NOT percentage results. For example, input $0\mathrm{.}0102$ NOT $1\mathrm{.}02\%)$

QUESTION $12$

Stock A has an expected return of $20\%$; stock B has an expected return of $5\%.$ What is the expected return on a portfolio is comprised of $67\%$ of Stock A

and $33\%$ of Stock B$?$

$\%($keep two decimal places$)$