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 (kwôr′tīl′, -tĭl)
n. Statistics
1. Any of the groups that result when a frequency distribution is divided into four groups of equal size.
2. Any of the values that separate each of these groups.

[Middle English, 90 degrees apart (of the relative position of two celestial bodies), from Old French quartil, from Medieval Latin quārtīlis, of a quartile, from Latin quārtus, fourth; see quart.]


1. (Statistics) statistics one of three actual or notional values of a variable dividing its distribution into four groups with equal frequencies
2. a quarter part of a distribution
3. (Statistics) statistics denoting or relating to a quartile
4. (Astrology) astrology denoting an aspect of two heavenly bodies when their longitudes differ by 90°
[C16: from Medieval Latin quartīlis, from Latin quartus fourth]


(ˈkwɔr taɪl, -tɪl)

(in a frequency distribution) one of the values of a variable that divides the distribution of the variable into four groups having equal frequencies.
[1875–80; « Latin quārt(us)]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.quartile - (statistics) any of three points that divide an ordered distribution into four parts each containing one quarter of the scores
mark, score, grade - a number or letter indicating quality (especially of a student's performance); "she made good marks in algebra"; "grade A milk"; "what was your score on your homework?"
statistics - a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters


[ˈkwɔːtaɪl] Ncuartil m


[ˈkwɔːtaɪl] nquartile m
References in periodicals archive ?
Since 2003, the fi360 Fund Family Fiduciary Rankings has ranked fund families based on the percentage of their individual funds which receive a top quartile fi360 Fiduciary Score.
2012), that measure was then recoded into quartiles to indicate four different levels of care experience, ranging from quartile 1 (i.
Women with higher binding inhibitory capacity at delivery were less likely to deliver LBW babies (odds ratio <1 for all quartiles in comparison to first quartile; p = 0.
Bottom 25% of schools * 2nd quartile * 3rd quartile * Top 25% Table made from bar graph.
Participants who were consuming the highest quartile of sodium--a mean 5.
Men with urinary BPA concentrations above the lowest quartile had higher testosterone concentrations than men in the first BPA quartile.
Women in the highest glucose quartile had a significantly greater risk of BC than those in the lowest glucose quartile (RR 1.
Controlling for race/ethnicity, age, caregiver education, poverty to income ratio, sex, serum cotinine level, caloric intake, television watching, and urinary creatinine level, children in the lowest urinary BPA quartile had a lower estimated prevalence of obesity (10.
In terms of the seven subcomponents of the FDI Contribution Index, Turkey is in the second quartile for wages and salaries, in the third quartile for value-added, employment, taxes, and capital expenditures, and in the fourth quartile for exports and R&D expenditures.
The quartile-wise analysis had revealed that the firms in the top two quartiles had gained market shares at the expense of the firms in the lower quartiles.
CHICAGO -- The risk of gallbladder disease was more than twice as high in pregnant women in the top quartile of carbohydrate consumption, compared with those in the bottom quartile, based on data from a prospective study of 3,070 pregnant women.
We then calculated relative risk (RR) and 95% CI of incident hypertension for each quartile of biomarker using conditional logistic regression, with the lowest quartile as the reference.