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GCSE Maths

Statistics

Frequency Polygons

Frequency Polygons

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Level 6–7
Foundation & Higher
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Key Points 

  • Used to display the shape of a frequency distribution.

  • Plot the midpoint of each class interval against its frequency.

  • Join the points using straight lines.

  • Often used to compare two sets of grouped data.

  • Begin and end the graph on the horizontal axis.


Keywords: frequency polygon, grouped data, class midpoint, frequency distribution, GCSE statistics.

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