Loading…
Loading…
GCSE Mathematics · key term
The difference between the upper and lower quartiles, measuring the spread of the middle 50% of the data.
Used by Edexcel
Specification S4 · Paper 1, Paper 2, Paper 3
Revise: Measures of Spread and OutliersThe two measures considered here are the range and the interquartile range. Both are measured in the same units as the original data.
When comparing consistency, name the measure and quote both values: “Ben is more consistent because his IQR is 8 points, compared with Sam's 12 points.”
Create a free account to read GCSE Mathematics revision notes for your exam board and track your progress.