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Scale factor — Edexcel GCSE Statistics Definition | GradeGen

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Statistics
Key terms
Scale factor

GCSE Statistics · key term

Scale factor

Definition

A number by which a measurement is multiplied. For similar shapes, multiplying lengths by $k$ multiplies areas by $k^2$ and volumes by $k^3$ .

How each exam board covers it

Edexcel GCSE Statistics · 1ST0

Specification 2a.02 · Paper 1, Paper 2

For similar two-dimensional shapes, corresponding lengths have the same scale factor.
Revise: Comparative diagrams and pie chart scaling

Edexcel Statistics past papers

Exam tips

1
Check what represents the data in a pictorial comparison: length, area or volume. These give different scale factors.

Related key terms

Comparative pie chart
Proportion
Radius
Sector
Total frequency

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3

Used by Edexcel