noun
- each of five equal groups into which a population can be divided according to the distribution of values of a particular variable
Usage: statistics; plural form of quintile
Examples
- The researchers divided the income data into quintiles to analyze wealth distribution.
- Students in the top quintiles performed significantly better on standardized tests.
- The study compared health outcomes across all five quintiles of the population.
- Each quintile represents exactly 20% of the total sample size.
- The lowest quintiles showed the greatest improvement after the intervention.
- Economic mobility between quintiles has decreased over the past decade.