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.

Arranging the members in ascending order, we get


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


The frequency distribution table is given below:


Number of Members



Tally Marks



Number of Families (Frequency)



3



IIII



4



4



IIII



4



5





7



6



III



3



7



II



2




Total



20



1