QUESTION $3$

$1$Malaysia store has $15$ outlets throughout Malaysia. The monthly sales $($RM $000)$ generated by the outlets during a festive season were as follows:

$14\mathrm{.}3,51\mathrm{.}1,21\mathrm{.}2,32\mathrm{.}7,22\mathrm{.}8,21\mathrm{.}1,51\mathrm{.}4,61\mathrm{.}3,32\mathrm{.}3$

$,71\mathrm{.}3,41\mathrm{.}5,14\mathrm{.}5,55\mathrm{.}6,47\mathrm{.}8,63\mathrm{.}5,$

Calculate the

$($i$)$ Mean

$($ii$)$ Median

$($iii$)$ Mode

$($iv$)$ Variance