Question

How many children were interviewed for this survey?

• A. 10
• B. 12
• C. 23
• D. 22

Answer 1

The correct option is D 22

A bar graph is used to compare items between different groups and track changes over a period of time. It is also a quick and faster way to read and understand data in comparison to reading it as text.
In this case too a quick look at the bar graph tells us that the number of children interviewed for this survey are as follows :

No. of Girls: 6 +2+1+1 = 10
No. of Boys: 3 +2+5+2 = 12
Total : 10 + 12 = 22 children were interviewed for this survey.