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quartiles function?

Posted: Tue Mar 27, 2007 7:25 pm
by regent
Anybody know how to calculate quartiles?

Thanks.

Posted: Tue Mar 27, 2007 7:50 pm
by nickvd
Yes I do but, so does google!

The position of the First Quartile is at position n / 4 + 0.5

The Second Quartile is the Median

The position of the Third Quartile is at position 3 * n / 4 + 0.5