Range
Topic of Descriptive statistics, part of Data analysis
Range
| Type | Topic |
| Taught in | Descriptive statistics |
| Part | Data analysis |
The largest observation minus the smallest. It uses only the two extremes, so one outlier changes it completely; the interquartile range is the robust measure of spread.
In Descriptive statistics
The five-number summary of a sample is its minimum, first quartile, median, third quartile and maximum. A boxplot draws the box from the first to the third quartile with a line at the median, and whiskers out to the most extreme data within 1.5 interquartile ranges of the box. Points beyond the whiskers are drawn individually as possible outliers.
Used in
See also
Outlier · Interquartile range · Sample quantile · Sample variance and standard deviation · Five-number summary and boxplot · Normal quantile plot · Data table · Summary statistics