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bivariate

[bahy-vair-ee-it, -eyt]
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adjective Statistics.
  1. of, relating to, or having two variates.

Origin of bivariate

First recorded in 1915–20; bi-1 + variate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for bivariate

bivariate

adjective
  1. statistics (of a distribution) involving two random variables, not necessarily independent of one another
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for bivariate

adj.

also bi-variate, "involving two variables," 1906, from bi- + -variate, from Latin variatio (see variation).

Online Etymology Dictionary, © 2010 Douglas Harper