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Quartile - Meaning, Definition & English Examples

A quartile is a statistical term that divides a data set into four equal parts, each representing 25% of the values. It helps analyze the distribution and spread of data.

quartile

/ˈkwɔrˌtaɪl/ /ˈkwɔːtaɪl/

Definition:

Each of four equal groups into which a population can be divided based on statistical distribution.

Synonyms:

quarter, segment, division

Part of Speech:

noun

Antonyms:

whole, entirety

Common Collocations:

lower quartile, upper quartile, quartile range, quartile deviation

Derivatives:

quartiles, interquartile

Usage Tips:

Use "quartile" to describe statistical divisions; ensure context clarifies whether referring to data distribution or specific values.

Common Phrases:

first quartile, third quartile, interquartile range

Etymology:

From Latin "quartus," meaning "fourth," reflecting division into four parts in statistics.

Examples:

  • 1. The first quartile marks the 25th percentile of the data set.
  • 2. Students analyzed the upper quartile to understand high-performing scores in the test results.
  • 3. The interquartile range helps identify the middle 50% of values in statistics.
  • 4. Her salary falls in the third quartile compared to others in her industry.

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