Guest Session: 1 Question Remaining. Create Account to save progress.
Login
Linear Modelingeasy
0:00.0

After fitting a least-squares regression line to a dataset with n observations, a student calculates all residuals and adds them together: ∑i=1n(yi−y^i)\sum_{i=1}^{n} (y_i - \hat{y}_i)∑i=1n​(yi​−y^​i​). What should this sum equal?