Question

The number of members in 20 families are given below:
4, 6, 5, 5, 4, 6, 3, 3, 5, 5, 3, 5, 4, 4, 6, 7, 3, 5, 5, 7.
Prepare a frequency distribution of the data.

Answer 1

First, we will arrange the data in increasing order.

3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 7, 7

Frequency table of the above data:

Number of members	Tally marks	Number of families (frequency)
3	$\left|\right|\left|\right|$	4
4	$\left|\right|\left|\right|$	4
5	$\cancel{\left|\right|\left|\right|}$ $\left|\right|$	7
6	$\left|\right||$	3
7	$\left|\right|$	2
Total		20