- 5-Number Summary
- Minimum, \(Q_1\), Median, \(Q_3\), Maximum
- \(Q_1\) is the first quartile, this is the 25th percentile
- \(Q_3\) is the third quartile, this is the 75th percentile
Five number summaries are used to describe some of the key features of a distribution. Using the values in a five number summary we can also compute the range and interquartile range.
The difference between the maximum and minimum values.
\(Range = Maximum - Minimum\)
- Interquartile range (IQR)
The difference between the first and third quartiles.
\(IQR = Q_3 - Q_1\)