Question

In a village, the milk was collected from 50 milkmen at a collection center in litres as given below :

27, 75, 5, 99, 70, 12, 15, 20, 30, 35, 45, 80, 77, 90, 92, 72, 4, 33, 22, 15, 20, 28, 29, 14, 16, 20, 72, 81, 85, 10, 16, 9, 25, 23, 26, 46, 55, 56, 66, 67, 51, 57, 44, 43, 6, 65, 42, 36, 7, 35.

By taking suitable classes, prepare grouped frequency distribution table.

Answer 1

Given:

In a village, the milk was collected from 50 milkmen at a collection center in litres as given below :

27, 75, 5, 99, 70, 12, 15, 20, 30, 35, 45, 80, 77, 90, 92, 72, 4, 33, 22, 15, 20, 28, 29, 14, 16, 20, 72, 81, 85, 10, 16, 9, 25, 23, 26, 46, 55, 56, 66, 67, 51, 57, 44, 43, 6, 65, 42, 36, 7, 35.

The grouped frequency distribution table for the above data is as follows:

Class interval	Tally marks	Frequency
0-10	$\cancel{\left|\right|\left|\right|}$	5
10-20	$\cancel{\left|\right|\left|\right|}$ $\left|\right|$	7
20-30	$\cancel{\left|\right|\left|\right|}$ $\cancel{\left|\right|\left|\right|}$	10
30-40	$\cancel{\left|\right|\left|\right|}$	5
40-50	$\cancel{\left|\right|\left|\right|}$	5
50-60	$\left|\right|\left|\right|$	4
60-70	$\left|\right||$	3
70-80	$\cancel{\left|\right|\left|\right|}$	5
80-90	$\left|\right||$	3
90-100	$\left|\right||$	3
	Total	50