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 Form 3 Geography: Statistical Methods online lessons

Disadvantages of pie-charts as a method of representing statistical data

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Answer Text:
Disadvantages of pie-charts.
1. Difficult to interpret if segments are many.
2. Tedious due to a lot of mathematical calculations and marking out of angles involved.
3. Can’t be used to show trend/change over a certain period.
4. Small quantities or decimals may not be easily represented.