This data is from a sample. Calculate the mean, standard deviation, and variance. Suggestion: use technology. Round answers to two decimal places.

x

$31\mathrm{.}9$

$37\mathrm{.}8$

$35\mathrm{.}7$

$29\mathrm{.}8$

$32\mathrm{.}2$

$16\mathrm{.}2$

$17\mathrm{.}3$

$30\mathrm{.}4$

$27\mathrm{.}7$