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- GCE O-Level Maths
- Representing Data

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Get Started Now- Lesson: 1a2:03
- Lesson: 1b0:46

It is important to present data accurately. One way to make data easy to understand is to draw them in graphs, such as line graphs, histograms, bar graphs and pictograms. However, if they are not drawn properly, these graphs can be very misleading too. In this section, we will learn
how to critique graphs and the ways to improve them.

Related Concepts: Representing patterns in linear relations, Reading linear relation graphs, Solving linear equations by graphing

- 1.Below are the results of a marketing survey done by a travelling company on activities people prefer to do in holidays.
Activity

Number of people

Stay home

35

Travel

45

Read

30

Spend time with friends

50

Total

155

a)If the travelling company claims that travelling is about 2 times more popular than staying home, is the company correct? Explain.b)Describe how the graph can be more accurate.