Question $2$

What is the standard deviation of returns on this stock given the following information? Enter your answer as a $\%$ accurate to two decimal places $($do not enter a $\%$ symbol or any other punctuation$).$

$\backslash$table$[[$State of the Economy,Probability of State of Economy,Rate of Return if State Occurs$],[$Boom$,0\mathrm{.}1,15\%$