Your portfolio is composed of $34\%$ Bonds which have an expected return of $6\mathrm{.}2\%$ and a standard deviation of $10\mathrm{.}2\%.$ The remainder of your portfolio is invested in Stocks which have an expected return of $13\mathrm{.}4\%$ and a standard deviation of $10\mathrm{.}3\%.$ The correlation between Stocks and Bonds is $-0\mathrm{.}429.$

What is your portfolio's standard deviation? $[$note: your answer should have at least two decimal places$]$