noun
- the three values that divide a dataset into four equal parts when arranged in order
Usage: statistics; mathematics
Examples
- The first quartile represents the 25th percentile of the data.
- Students learned to calculate quartiles to analyze test score distributions.
- The box plot displays the median and quartiles clearly.
- Quartiles help identify outliers in statistical analysis.
- The third quartile marks the 75th percentile of the dataset.
- Researchers used quartiles to compare income levels across regions.