why the term crossproduct of x has zero what is cross product in linear regression why is the term zero in linear regression which term is a cross product in linear regression which term is zero in linear regression? what is the difference between a cross product term and a zero product term why are the cross product terms zero why is the expression cross product in linear regression when a term has zero cross product why is cross product term zero? what term is zero in regression why is a cross product term zero why is the cross product term zero cross product term in lhs what's the cross product term in linear regression why is a cross product term zero why is a cross product term zero why is a cross product term zero why is cross product term zero in linear regression equation what is the coefficient for a cross product term