Definition of quartile
: any of the three values that divide the items of a frequency distribution into four classes with each containing one fourth of the total population; also : any one of the four classes
Did You Know?
A quartile is a quarter of a specific group that has been tested or evaluated in specific ways. The first quartile is the one that scores highest and the fourth quartile scores lowest. For achievement and proficiency tests, the first quartile is the place to be; for blood pressure or cholesterol, the third quartile is healthier.
Origin and Etymology of quartile
International Scientific Vocabulary, from Latin quartus
First Known Use: 1879
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