## quartile

quar·tile- any of the values in a series dividing the distribution of the individuals in the series into four groups of equal frequency
- any of these groups

Origin of quartile

Medieval Latin*quartilis*from Classical Latin

*quartus,*fourth: see quart

## quartile

noun

*Statistics*

- Any of the groups that result when a frequency distribution is divided into four groups of equal size.
- Any of the values that separate each of these groups.

Origin of quartile

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**.

## quartile

Noun

(*plural* quartiles)

- (statistics) Any of the three points that divide an ordered distribution into four parts, each containing a quarter of the population.
- (statistics) Any one of the four groups so divided.
*This school is ranked in the first quartile.*