what is the classical chi square error which is the classical least squares estimator? what is the model for an error in least squares x hat beta what is the prediction error in least squares in math what is the classical least squares estimator? which model provides an optimal estimate of the prediction error? (beta-beta) average probability of error in a linear model what is the prediction errors what is the prediction error in a linear model what is the function for the least squares of a linear model what is the chi square distribution for the classical least squares what is the prediction error? what is the prediction error of the classical linear model when you have a prediction error in a least squares model the classical least squares estimator would be the what is the parameter of classical linear model? which parameter is given in the classical least squares estimate which is true about a classical least squares estimator? what is the prediction error for linear models