4. Statistics

Regression — Quiz

Test your understanding of regression with 5 practice questions.

Practice Questions

Question 1

Which of the following describes the relationship between two variables where an increase in one variable tends to be associated with a decrease in the other?

Question 2

In the context of linear regression, what is the primary goal of the 'least squares' method?

Question 3

Which of these is a common diagnostic plot used to check the assumptions of linear regression?

Question 4

What does a correlation coefficient of $r = -0.7$ suggest about the relationship between two variables?

Question 5

When performing linear regression, what is the purpose of the independent variable?