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Meaning of quartile

quar•tile

Pronunciation: (kwôr'tīl, -til), [key]
— n.
  1. (in a frequency distribution) one of the values of a variable that divides the distribution of the variable into four groups having equal frequencies. Cf.
  2. a quartile aspect.
—adj.
  1. of or pertaining to the aspect of two heavenly bodies when their longitudes differ by 90°.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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