12: Variance, Covariance, and Linear Regression Last updated Jun 28, 2020 Save as PDF 11.3: Problems on Mathematical Expectation 12.1: Variance Page ID10823 Paul PfeifferRice University ( \newcommand{\kernel}{\mathrm{null}\,}\) 12.1: Variance12.2: Covariance and the Correlation Coefficient12.3: Linear Regression12.4: Problems on Variance, Covariance, Linear Regression