Problem $9-17$ Standard Deviation $($LG$9-3)$ The past five monthly

returns for Kohl$$s are $3\mathrm{.}56$ percent, $3\mathrm{.}67$ percent, $1\mathrm{.}70$ percent,

$9\mathrm{.}26$ percent, and $2\mathrm{.}58$ percent.Compute the standard deviation of Kohls$$ monthly returns. $($Do

not round intermediate calculations. Round your answer to $2$ decimal

places.$)$