AQA GCSE Geography · 8035
Paper 1, Paper 2, Paper 3
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GCSE Geography · key term
The upper quartile minus the lower quartile: . It measures the spread of the middle 50% of the data.
Paper 1, Paper 2, Paper 3
Specification 9.3 · Paper 1, Paper 2, Paper 3
The spread of the middle 50% of values, calculated as .
Give the units for averages, quartiles, range and inter-quartile range. Percentage change has a % sign, not the original measurement unit.
Keep units: the mean, median, range and inter-quartile range have the same units as the original measurements.
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