Mathematics GCSE
Interquartile Range (IQR)
What Interquartile Range (IQR) means in Mathematics GCSE, as defined for Pearson Edexcel.
Definition of Interquartile Range (IQR)
The difference between the upper and lower quartiles, representing the middle 50% of the data.
Topics that use Interquartile Range (IQR)
- Statistics (Pearson Edexcel GCSE)
Related terms
Using Interquartile Range (IQR) in the exam
Definition questions usually carry one or two marks, and examiners look for the precise wording. Write the definition from memory, check it against the version above, and then use the term in a longer answer on the same topic so it sticks.
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