The quality of being covariable

plural of covariance

(statistics) A statistical measure defined as scriptstyle operatorname Cov(X,Y)= operatorname E((X-𝜇)(Y-𝜈)) given two real-valued random variables X and Y, with expected values scriptstyle E(X),=,𝜇 and scriptstyle E(Y),=,𝜈.

(category theory) (Of a functor) which preserves composition. / (object-oriented programming) Using or relating to covariance.

(algebra) A bihomogeneous polynomial in x, y, ... and the coefficients of some homogeneous form in x, y, ... that is invariant under some group of linear transformations.

(statistics) A variable that is possibly predictive of the outcome under study.

covariance

plural of covariate

(statistics) To vary together with another variable, particularly in a way that may be predictive

simple past tense and past participle of covary