Skip to content

Log in Sign up free

Loading…

Home
Subjects
Past papers
Key terms
Pricing

My courses

Select your courses

Loading…

Subjects

Biology
Business
Chemistry
Citizenship Studies
Classics
Combined Science
Computer Science
Design and Technology
English Language
English Literature
Film Studies
Food Preparation and Nutrition
Geography
History
Mathematics
Media Studies
Physical Education
Physics
Psychology
Religious Studies
Sociology
Statistics

Resources

Browse courses
Past papers
Key terms & definitions
Pricing

About

Sign up
Log in
Privacy Policy
Terms of Service

© 2026 GradeGen

Not affiliated with any exam board.

Measure of spread — AQA GCSE Statistics Definition

Home
Statistics
Key terms
Measure of spread

GCSE Statistics · key term

Measure of spread

Definition

A numerical measure of how widely the values in a dataset are dispersed.

Used by AQA

How each exam board covers it

AQA GCSE Statistics · 8382

Specification 3.4.4, 3.5.8 · Paper 1, Paper 2

A measure of spread, also called a measure of dispersion, describes how widely scattered the data values are.
Revise: Measures of Spread
A numerical description of how much the values in a dataset vary. Examples include the range, interquartile range and standard deviation.
Revise: Spread Comparisons

AQA Statistics past papers

Exam tips

1
Compare the same measure of spread for both datasets, using the same units and, for interpercentile ranges, the same percentile boundaries.

Related key terms

Interpercentile range
Interquartile range
Percentile
Range
Standard deviation

Get more free notes every week

Create a free account to keep every note you open and track your progress.

Create free account Log in

Interdecile range