The Gauss-Markov theorem requires which of the following conditions? Select ALL that apply. the errors are independent the independent variables are normally distributed the errors are normally distributed the dependent variable is normally distributed (conditionally on the independent variables) the errors have the same variance the errors have mean zero none of these .

1. The Gauss-Markov theorem requires which of the following conditions? Select ALL that apply.
the errors are independent the independent variables are normally distributed the errors are
normally distributed the dependent variable is normally distributed (conditionally on the
independent variables) the errors have the same variance the errors have mean zero none of these