quartile

Data distribution divider

A quartile is one of three values that divide a data set into four equal parts.

The first quartile marks the 25th percentile, the second the 50th (the median), and the third the 75th.

Quartiles appear frequently in statistics and standardized testing: Her score fell in the top quartile.

The range between the first and third quartiles is the interquartile range.

statistics

interquartile

Between 25th and 75th percentiles

outliers · percentile · distribution · variance · skewness · deviation · mean · mode · descriptive · analysis

ranking

ordinal

Number denoting position

decile · threshold · cutoff · benchmark · standing · placement · classification · hierarchy · stratum · gradation

partition

division

Splitting into parts

split · breakdown · allocation · separation · apportionment · grouping · classification · categorization · slicing · boundary

Categories
Opposites
statistical division/completeness

quartilewhole

Full and undivided

totality · entirety · complete set · sum total · undivided

granularity of division

quartilepercentile

Statistical ranking threshold

centile · decile · quintile · raw score · median

Family

quartiles

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Abstract · Rated G