The linear multiple regression model can be represented in matrix notation as Y= Xβ + U, where X is of order n×(k+1). k represents the number of
A)regressors.
B)observations.
C)regressors excluding the "constant" regressor for the intercept.
D)unknown regression coefficients.

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The Answer of The linear multiple regression model can be represented in matrix notation as Y= Xβ + U, where X is of order n×(k+1). k represents the number of
A)regressors.
B)observations.
C)regressors excluding the "constant" regressor for the intercept.
D)unknown regression coefficients.

The Linear Multiple Regression Model Can Be Represented in Matrix