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GCSE Mathematics · key term
A circular chart divided into sectors to show categories as proportions of a whole.
Used by AQA, Edexcel and OCR
Specification S2 · Paper 1, Paper 2, Paper 3
A circular chart divided into sectors so that each sector's angle is proportional to the frequency of its category.
Revise: Statistical Charts for Categorical DataA pie chart represents the whole data set by a full circle. Each category is shown by a sector—the region between two radii and their connecting arc.
Specification S2 · Paper 1, Paper 2, Paper 3
A circular chart divided into sectors so that each sector represents a proportion of the whole data set.
Revise: Charts for Categorical DataA pie chart shows how the whole data set is divided among categories.
Specification 12.02a · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Foundation), Paper 4 (Higher), Paper 5 (Higher), Paper 6 (Higher)
A circular chart divided into sectors whose angles represent the proportions in different categories.
Revise: Charts for Categorical and Discrete DataFor categorical data, a frequency table, bar chart, pie chart or pictogram may be appropriate. For ungrouped discrete numerical data, a frequency table or vertical line chart can display the frequency at each exact value. “Ungrouped” means that the values have not been combined into intervals.
For a pie chart, show the calculation of each sector angle; the angles should total .
When comparing pie charts with different totals, compare proportions rather than assuming that the larger-looking sector represents a greater frequency.
Give one precise reason for a choice, such as “a pie chart shows each category as a proportion of the whole”, rather than saying only that it is suitable.
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