Question $19(10$ points$)$ Refer to the picture, which provides expected returns for $2$ assets$-"$A$"\backslash$& $"$B$"$ for $3$ different states of nature: Boom, Normal, $\backslash$& Recession. The probability of each state is shown. Suppose that a portfolio is created with $\backslash (75\backslash \%\backslash )$ invested in Asset A $\backslash$& $25\backslash \%$ invested in Asset B$.$ What is the expected standard deviation in returns for the portfolio? $\backslash \%[$Express your answer in percentage terms, rounded to $2$ decimal places $($ie $22\mathrm{.}00)]-$ keep$5$ deciaml places in all intermediate cfalculations