4. Statistics and Probability

Linear Regression And Prediction — Quiz

Test your understanding of linear regression and prediction with 5 practice questions.

Practice Questions

Question 1

What does a linear regression model try to do with a set of data points?

Question 2

In a scatter plot with a positive correlation, what happens as $x$ increases?

Question 3

What is the meaning of the gradient in a linear regression equation such as $y = mx + c$?

Question 4

What does the $y$-intercept represent in the equation $y = mx + c$?

Question 5

A regression line is given by $y = 4x + 1$. What is the predicted value of $y$ when $x = 3$?