EM-3029
Misleading diagrams
E Math · Secondary 4 · Medium · Misleading diagrams
A pie chart shows the market shares of four phone brands. Brand X has 50% share, but its sector is drawn using a much larger radius than the other sectors, making it look more than half the circle. Why is this pie chart misleading?
- The angles do not add up to 360°.
- Different radii are used so area no longer matches the percentages.
- Too many categories are shown in one chart.
- The colours used are too similar.
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