4.1 Formal Definitions and Notations4.2 Ordinary Least Squares (OLS)4.3 Simple Linear Regression4.4 Multiple Linear Regression4.5 Regression Evaluation Metrics4.6 Example: Predicting House Prices4.7 Linear Regression Assumptions4.8 Gradient Descent4.9 Alternative Loss Functions4.10 Non-Linear Regression4.11 Regularized Linear Regression4.12 (*) Bayesian Linear Regression4.13 Summary4.14 Exercises