Report the minimum, Q1, median, Q3 and maximum of a dataset for box-plot construction.
The five-number summary consists of the minimum, Q1, median, Q3, and maximum. These five values fully describe a box-and-whisker plot and give a quick picture of the distribution's center and spread.
Five-Number Summary = {Min, Q1, Median, Q3, Max}
It provides the key values needed to draw a box-and-whisker plot, giving a visual overview of the data distribution's center, spread, and skewness.
Not directly, but combined with the IQR (Q3−Q1) and Tukey's fences, it provides the basis for outlier detection.