Question

In a survey or 85 families of a colony, the number of members in each family was recorded, and the data has been represented by the following bar graph.



Read the bar graph carefully and answer the questions given below:
(i) What information does the bar graph give?
(ii) How many families have 3 members?
(iii) How many people live alone?
(iv) Which type of family is the most common? How many members are there in each family of this kind?

Answer 1

(i) The bar graph shows the number of members in each of the 85 families.

(ii) 40 families have three members each.

(iii) Number of people living alone = 85 − (5+40+25+15)
= 85 − 85
= 0

(iv) The most common family is that with three members.
Each such family has three members .