the problem. The total is 100.1. (15) Using the following simple regression model we want to show ... explained by the model and thus a measure of the goodness of fit. However, this measure () cannot ... following models.(a)⇒ β₂는 X가 1 증가할 때 Y의 증가율에 미치는 정도(b)⇒ β₂는 X증가율이 1 올라가는 정도(c)⇒ β₂는 X증가율이 1 올라갈 때 Y증가