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Negative skew — Edexcel GCSE Statistics Definition | GradeGen

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Statistics
Key terms
Negative skew

GCSE Statistics · key term

Negative skew

Definition

A distribution shape with a longer tail towards lower values, usually shown on the left.

Used by Edexcel

How each exam board covers it

Edexcel GCSE Statistics · 1ST0

Specification 2a.09, 2a.10 · Paper 1, Paper 2

Negative skew: the tail stretches towards lower values, normally to the left.
Revise: Determining skewness
A distribution with a tail towards lower values; values below the median have a greater spread than those above it.
Revise: Interpreting skewness

Edexcel Statistics past papers

Related key terms

Positive skew
Skewness
Distribution
Lower quartile
Median

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Standard deviation

Symmetrical distribution