decile

[des-il, -ahyl]

noun

Statistics.

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

decile

/ -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

Word History and Origins

Origin of decile¹

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

Word History and Origins

Origin of decile¹

C17: from _deca- + _-ile

Example Sentences

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

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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.

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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.

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Consider the performance of a hypothetical portfolio that buys the 10% of stocks with the highest betas and sells short the decile of stocks with the lowest betas.

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He points out that the decile of the Russell 3000 that did the best from Aug. 1 to Oct.

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