Critiquing data presentation

Critiquing data presentation

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,

Lessons

  • 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


    Critiquing data presentation
    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.

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32.
Representing Data
32.1
Advantages and disadvantages of different graphs
32.2
Misleading graphs
32.3
Critiquing data presentation
GCE N(A)-Level Maths
Don't just watch, practice makes perfect.