14 The math behind OLS the intercept

This video breaks down the math behind Ordinary Least Squares (OLS), focusing on the derivation of the intercept formula. We explore how to find the best-fit line by minimizing the sum of squared residuals, and revisit essential calculus concepts like derivatives of power functions. The explanation clarifies the use of summation notation and its properties, demonstrating how they are applied to derive the intercept (beta-null hat). Understanding these mathematical underpinnings is crucial for grasping OLS proofs and their practical application in econometrics. Subscribe to @AxiomTutoringCourses for more helpful tutorials.