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#### karush

##### Well-known member

- Jan 31, 2012

- 2,816

\(\displaystyle A=18\) (first data in list)

\(\displaystyle B=19 Q_1\)

\(\displaystyle C=23\) (median of list)

\(\displaystyle D=31 Q_3\)

\(\displaystyle E=36\) (last data of list)

altho the problem doesn't ask for it, but W|A says the

*interquartile range*is \(\displaystyle 11\) but here

\(\displaystyle Q_3-Q_1\) is \(\displaystyle 31-19=12\)?