Following graph shows the comparison between average marks obtained by students of class A and class B in 9 subjects. Which Subject has the closest margin of average marks when both classes are compared?
Here, the horizontal axis is x axis which represents 2 classes and vertical axis is y axis which represents marks. The scale on y axis: 1cm = 10 marks. [3]
When we observe the graph carefully,
Subject 5 has the 2 bars almost neck to neck with each other which means the values are close by. [1]
The values of the graph are given in tabular form as:
We can see subject 5 has closest margin. [2]