6. Data Analysis and Modeling

Model Evaluation — Quiz

Test your understanding of model evaluation with 5 practice questions.

Practice Questions

Question 1

What is the primary purpose of using residuals when evaluating a statistical model?

Question 2

Which of the following is a common goodness-of-fit measure used to evaluate linear regression models?

Question 3

What is the main goal of cross-validation in model evaluation?

Question 4

Which validation technique involves reserving a portion of the data for testing after the model is trained on the rest?

Question 5

A model has an R-squared value of 0.85. What does this indicate about the model’s fit to the data?