EM-3025
Misleading diagrams
E Math · Secondary 4 · Medium · Misleading diagrams
A pie chart shows the distribution of students choosing four co-curricular activities. The sector for Basketball is labelled "10%" but clearly takes up about one quarter of the circle. Explain why this pie chart is misleading.
- The drawn size of the Basketball sector does not match its stated 10%, exaggerating its share.
- Pie charts cannot be used for percentages less than 20%.
- The chart should have used bars instead of sectors.
- Basketball should always be the largest sector in a school pie chart.
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