Question

Various modes of transport used by 2150 students of a school are given below:

School bus	Private bus	Scooter	Bicycle	By foot
750	460	130	370	440

Draw a bar graph to represent the above data.

Answer 1

The following steps are followed while drawing the bar graph:

Step 1: On a graph paper, draw a horizontal line OX and a vertical line OY, representing the x-axis and y-axis, respectively.
Step 2: Along OX, write the names of the states of India at points taken at uniform gaps.
Step 3: Choose the scale: 1 small division = 10 student
Step 4: Then the height of the various bars are:
$$\begin{gathered} \mathrm{Number}\mathrm{of}\mathrm{students}\mathrm{who}\mathrm{used}\mathrm{School}\mathrm{bus}=\left(\frac{1}{10}\times 750\right)=75\mathrm{small}\mathrm{divisions} \\ \mathrm{Number}\mathrm{of}\mathrm{students}\mathrm{who}\mathrm{used}\mathrm{Private}\mathrm{bus}=\left(\frac{1}{10}\times 460\right)=46\mathrm{small}\mathrm{divisions} \\ \mathrm{Number}\mathrm{of}\mathrm{students}\mathrm{who}\mathrm{used}\mathrm{Scooter}=\left(\frac{1}{10}\times 130\right)=13\mathrm{small}\mathrm{divisions} \\ \mathrm{Number}\mathrm{of}\mathrm{students}\mathrm{who}\mathrm{used}\mathrm{Bicycle}=\left(\frac{1}{10}\times 370\right)=37\mathrm{small}\mathrm{divisions} \\ \mathrm{Number}\mathrm{of}\mathrm{students}\mathrm{who}\mathrm{went}\mathrm{on}\mathrm{their}\mathrm{foot}=\left(\frac{1}{10}\times 440\right)=44\mathrm{small}\mathrm{divisions} \end{gathered}$$
Step 5: On the x-axis, draw bars of equal width and of heights obtained in step 4 at the points marked in step 2.

The completed bar graph is as shown below: