The number of members in 20 families are given as: 4,6,5,5,4,6,3,3,5,5,3,5,4,4,6,7,3,5,5,7. What is the frequency of families with 4 members?
The number of times a particular observation occurs is known as frequency.
Here in our data, 4,6,5,5,4,6,3,3,5,5,3,5,4,4,6,7,3,5,5,7
we observe that 4 member family is occuring 4 times, therefore the frequency of 4 membered family is 4