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Original · left

Outlier (person)

A person or thing that differs from others in its group; popularized by Malcolm Gladwell's book.

First in use: the 1600s
Duplicate · right

Outlier (statistics)

A data point that differs significantly from other observations in a dataset.

First in use: the 1880s

Outlier / Outlier (person) / Outlier (statistics)

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Duplicate share · 12 mo—
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Gladwell's book vs. three standard deviations.

Which meaning of Outlier is the original, and which one is the duplicate riding on its name? Outlier (person) came first (the 1600s). Outlier (statistics) arrived in the 1880s. The data below shows which one owns the word now.

Wikipedia pageviews since 2015

Outlier (person)Outlier (statistics)
English Wikipedia pageviews since July 2015 load here.

Duplicate's share of attention

Green line = duplicate's % · above 60 it owns the word · below 40 the original does

Share-of-attention line loads here.

The case for each meaning

Sourced definitions, usage stats and quotes

Original · the 1600s

Outlier (person)

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Duplicate · the 1880s

Outlier (statistics)

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