what is variance of regression estimator how to compute variance of regression using excel what is variance of regression estimate what is the variance variance of regression estimation variance of regression when does variance of regression estimate what kind of matrix for calculating variance if x is a vector, does $x$ generate error vr estimater definition what does variance represent in regression why do we compute variance of regression can we use variance in regression? variance estimation problem what is variance of regression estimate how to compute the variance of regression which regression model would use an inversion to compute variance how to compute variance of regression how to figure variance on a regression equation why use regression model