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Step 5: The bar graph for the given data is shown below:

Example 8: The table given below shows the number of students in classes VI to X in a school.

Class VI VII VIII IX X
Number of students 280 240 320 200 160
Represent the above data using a bar graph.

Solution: First, draw a horizontal line and a vertical line. On the horizontal line, write the classes
VI, VII, VIII, IX and X. Choose a suitable scale along the vertical line, say 1 unit length = 80 students.
Write the frequencies representing the number of students as per the chosen scale. Draw vertical
bars for the respective classes, showing the number of students in each class as high as their
frequencies.

Example 9: The table given below shows the lengths of longest rivers on each continent. Represent
the information through a bar graph with vertical or horizontal bars.

Continent Longest River Length

Africa Nile 6,690 km
Asia Yangtze 5,530 km
Australia Murray 2,508 km
Europe Volga 3,700 km
North America Missouri 4,090 km

South America Amazon 6,300 km

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