Skip to Content
Medical Term:

variance

Pronunciation: var'e-ans

Definition:

  1. The state of being variable, different, divergent, or deviate; a degree of deviation.
  2. A measure of the variation shown by a set of observations, defined as the sum of squares of deviations from the mean, divided by the number of degrees of freedom in the set of observations.
© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
Hide