decile

American  

[des-il, -ahyl] / ˈdɛs ɪl, -aɪl /

noun

Statistics.

1. one of the values of a variable that divides the distribution of the variable into ten groups having equal frequencies.

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decile British  

/ -aɪl, ˈdɛsɪl /

noun

1. statistics

   1. one of nine actual or notional values of a variable dividing its distribution into ten groups with equal frequencies: the ninth decile is the value below which 90% of the population lie See also percentile

   2. a tenth part of a distribution

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Etymology

Origin of decile

First recorded in 1880–85; dec- + -ile

Example Sentences

Among the top decile of DoorDash customers, the frequency of use has increased, and not only for food delivery.

From Barron's

The first column focuses on the 10% of days last year in which the timers were most optimistic; the second column focuses on the decile of days in which the timers were most pessimistic.

From MarketWatch

We are using terms like "highly deprived" and "most deprived" to refer to the group of neighbourhoods in the first decile.

From BBC

Historically, big capital expenditure is not rewarded — Subramanian points out, in data stretching back to 1986, the relative performance of companies in the top decile of spending growth has lagged the equal-weighted S&P 500.

From MarketWatch

Once all the neighbourhoods are ranked, they are split into 10 equal groups called deciles, where the first decile is the 3,375 most deprived neighbourhoods and so on.

From BBC