Mathematics GCSE
interpolation and extrapolation
What interpolation and extrapolation means in Mathematics GCSE, as defined for Pearson Edexcel.
Definition of interpolation and extrapolation
Check what you remember
Read the wording for your board, then hide it and explain interpolation and extrapolation in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
A reading taken inside the range of the plotted data is interpolation and is fairly safe, while going beyond that range is extrapolation, where the trend may not continue.
Topics that use interpolation and extrapolation
- Statistics (Pearson Edexcel GCSE)
Related terms
- bias
- box plot
- choosing an average
- Continuous Data
- correlation and causation
- Cumulative frequency graph
- Discrete Data
- Extrapolation
Using interpolation and extrapolation in the exam
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