Congratulations on finishing the section!
Here is a cheatsheet with key takeaways.

You can download the image by simply clicking on it

Congratulations on learning Simple Linear Regression, Multiple Linear Regression, and Polynomial Regression!
Next, you will learn how to evaluate the models' performance and compare them to choose the best one.
You will also learn about the problems you might face while using these models, such as overfitting, and how to address them.