The AI-powered English dictionary
plural quartiles
(statistics) Any of the three points that divide an ordered distribution into four parts, each containing a quarter of the population. examples
(statistics) Any one of the four groups so divided. quotations examples
The Department for Transport's National Travel Survey shows that workers in the lowest income quartile are twice as likely to use public transport.
2021 July 28, Paul Clifton, “Network News: Confusion and dissent over face mask requirements: Reaction to the Guidance: British Safety Council”, in RAIL, number 936, page 6