Explore the fundamental concepts of Principal Component Analysis (PCA) in this 27-minute video tutorial. Dive into variance and covariance, eigenvectors and eigenvalues, and practical applications of PCA. Learn through a visual approach with minimal formulas and abundant illustrations. Understand dimensionality reduction using housing data examples, grasp the importance of mean and variance, and delve into covariance matrices and linear transformations. Discover the significance of eigenvalues and eigenvectors in PCA, and gain insights into how this technique can be applied to real-world data analysis problems.