Decile

usgb/ˈdesl/
noun

It is one of ten equal parts of a group of people or things, especially in statistics, it is a method to categorize data into ten parts.

The results of the test were divided into deciles, with the top decile representing the highest 10% of scores.
Visual representation of "decile" - It is one of ten equal parts of a group of people or things, especially in statistics, it is a method to categorize data into ten parts.

Often appears as...

  • top decile
  • lower decile

Usage tips

Academic

Definition 1 of 2
Visual representation of "decile"
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Data Segmentation

Used to segment data into 10 groups for comparison. Each group contains 10% of the total data set.

Illustration for Data Segmentation
Researchers used deciles to analyze income levels across the population.
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Statistical Measure

Reflects position, not value; being in a certain decile doesn't say exactly how much one has.

Illustration for Statistical Measure
Despite his wealth, he was in the same decile as others with lower incomes.
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Percentile vs. Decile

Remember, deciles divide data into 10 parts, percentiles into 100. Don't confuse the two.

Illustration for Percentile vs. Decile
Her score was in the 9th decile, not the 90th percentile.
Visual representation of the word "Decile"

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