The marks obtained by $80$ students in a test are given below:

Marks	$4$	$12$	$20$	$28$	$36$	$44$
Number of students	$7$	$11$	$22$	$17$	$8$	$15$

Find the modal marks.

The points scored by a basketball team in a series of matches are as follows:

$17, 2, 7, 27, 25, 5, 14, 18, 10, 24, 10, 8, 7, 10$

Find median of the data.

Find the mode of the following data.

$4, 14, 6, 9, 6, 14, 9, 21, 21, 25, 21, 14, 29, 21, 8, 6$

On a particular day, number of shoes sold by a shoe store are given in the following data: