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

returns for Kohl$$s are $3\mathrm{.}84$ percent, $4\mathrm{.}37$ percent, $1\mathrm{.}98$ percent,

$9\mathrm{.}40$ percent, and $2\mathrm{.}86$ percent.Compute the standard deviation of Kohls$$ monthly returns. $($Do

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

places.$)$