A regression equation a connects as many of the points in a

A regression equation… a. connects as many of the points in a scatterplot as possible b. always includes an interaction term c. summarizes evidence against the line of best fit d. always includes an implicit error term.

Answer: d. always includes an implicit error term.

Reason: Regression is based on the method of minimising the error due to estimation. Hence, the presence of error is an implicit assumption of regression.