Quartiles

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Quartiles
The values that divide a list of numbers into quarters.

In {3, 4, 4, 5, 6, 8, 8} :

· Quartile 1 (Q1) = 4
· Quartile 2 (Q2), which is also the Median, = 5
· Quartile 3 (Q3) = 8

See: Median