Decile meaning

dĭs'īl', -əl
Decile is defined as one of ten equal groups which are divided a large group of values or statistics.

The richest 10 percent of the population is an example of a decile.

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Any one of the numbers or values in a series dividing the distribution of the individuals in the series into ten groups of equal frequency.
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Any one of the ten groups.
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Any of the values which divide a frequency distribution into ten groups of equal frequency; also, any of these groups.
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(statistics) Any of the values in a series that divides the distribution of individuals in that series into ten groups of equal frequency.

Although few people scored high marks, everyone did quite well—the lowest decile was over 50%.

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Any one of the ten subsets or groups so divided.

Our school is in the top decile for exam results.

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(astrology) An aspect or position of two planets when they are distant from each other a tenth part of the zodiac.
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Origin of decile

dec(i)– –ile