)How Should $\beta$ _k in the General Multiple Regression Model Be Interpreted?
A)The

Multiple Choice

) How should $\beta$ _k in the general multiple regression model be interpreted?

A) The number of units of change in the expected value of y for a 1 unit increase in x_k when all remaining variables are unchanged
B) the magnitude by which x_k varies in the model
C) the amount of variation in y explained by x_k in the model
D) the number of variables used in the model.