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E:\Working\Orange_Education\TouchPad_Maths_4\Open_Files\Chap_13\Chap_13
\ 10-Nov-2025 Bharat Arora Proof-8 Reader’s Sign _______________________ Date __________

3. the number of storybooks read by four students in one year is given below.
1 box = _____ books
name of the student Ajay Anil Sumit Vijay

number of books 12 8 10 16
Number of books read
Choose an appropriate vertical scale and colour the

boxes to draw a bar graph in the given grid.

Ajay Anil Sumit Vijay
Students

 Data is simply an organised collection of information, which can be facts, numbers,
or measurements.
 Data helps us understand and make sense of information, allowing us to compare
things, identify patterns, and draw conclusions.

 Using pictures or symbols to represent data, where each symbol represents a certain
number of items, is known as a pictograph.

 Every pictograph must have the following: title: The title tells us what information the
pictograph gives. Key: The key tells us the meaning and the value of the picture or
symbol.

 A representation of data with the help of bars (rectangles) in a diagram is called a
bar graph or bar chart.

Learning LOGS

1. the number of books of different subjects sold by a seller in a week is shown
below.

Subjects Mathematics English Hindi Science

number of books 10 12 8 7

Draw a horizontal bar graph to represent the data.

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Data Handling