Quartiles and outlier boundary
The ordered data set is \(6, 8, 10, 12, 14, 18, 22, 26, 30\). Find \(Q_1\), \(Q_3\), the interquartile range, and the upper outlier boundary.
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Worked practice: quartiles and outliers
Read the quartiles, find the interquartile range, then calculate the upper outlier boundary.