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quartile
Definitions
[ˈkwɔːtʌɪl], (Noun)
Definitions:
- each of four equal groups into which a population can be divided according to the distribution of values of a particular variable
(e.g: in the highest quartile, the mean age was 72)
Phrases:
Origin
:
early 16th century (in the sense ‘quadrature’ (in astronomy)): from medieval Latin quartilis, from Latin quartus ‘fourth’. The senses relating to statistics date from the late 19th century
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definition by Oxford Dictionaries