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Tail — Edexcel GCSE Statistics Definition | GradeGen

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Statistics
Key terms
Tail

GCSE Statistics · key term

Tail

Definition

The thinner, extended part of a distribution towards unusually low or unusually high values.

Used by Edexcel

How each exam board covers it

Edexcel GCSE Statistics · 1ST0

Specification 2a.10 · Paper 1, Paper 2

The extended, thinner part is called the tail.
Revise: Interpreting skewness

Edexcel Statistics past papers

Exam tips

1
Positive and negative describe the direction of the tail, not whether the data values themselves are positive or negative.

Related key terms

Distribution
Median
Negative skew
Positive skew
Skewness

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