If a simple least squares regression model is developed based on a sample where the two variables are known to be positively correlated, the sum of the residuals will be positive.

Question

Quizplus · Accepted Answer

The sum of the residuals in a least squares regression model is always zero, regardless of the correlation between the variables, because the line of best fit is calculated in a way that minimizes the sum of the squared residuals, leading to a balance of positive and negative residuals around the regression line.

If a Simple Least Squares Regression Model Is Developed Based