Practical Data Science using Python - Linear Regression - Training and Cost Function

The video tutorial provides an in-depth explanation of linear regression, a fundamental machine learning algorithm. It covers the basic components such as Theta coefficients, predictor and target variables, and the process of learning from data. The tutorial explains how the algorithm creates a model to predict outcomes and the importance of error minimization. It also delves into cost functions like Mean Squared Error (MSE) and R-squared, which are crucial for evaluating the model's performance.

Discuss the importance of preprocessing data before applying linear regression.

Explain the concept of error minimization in linear regression.

What does the R-squared value indicate in a linear regression model?

What are residuals in the context of linear regression, and how are they calculated?