14. Least Squares and Applications
Interpreting Residuals — Quiz
Test your understanding of interpreting residuals with 5 practice questions.
Practice Questions
Question 1
In regression, what is a residual?
Question 2
A model predicts $12$ for a data point whose observed value is $15$. What is the residual?
Question 3
A model predicts $8$ for a data point whose observed value is $5$. What is the residual?
Question 4
If a data point lies exactly on the regression line, what is its residual?
Question 5
What does a negative residual tell you about the model's prediction?