As the pictograph is a very time-consuming process, so we can use another way to represent data.
If we use the bars of the same width with equal spacing to represent the data in which the length of the bars represents the frequency is called Bar Graph or Bar Diagram.
Interpretation of a Bar Graph
The following graph tells the favourite colours in a class of 30 students.
Answer the following questions:
Drawing a Bar Graph
Drawing a bar graph is an interesting task, but we must choose an appropriate scale to draw the bar graph. It depends upon our own choice that what we are taking for the scale.
The daily sale of mobile phones in Vicky production is given below. Draw the bar graph to represent the data.
Steps to make a bar graph-
The height of the bars tells the sale of the mobile phones in Vicky production.