2.4 Bayes’ Theorem, likelihood and classification2.5 Hypothesis testing2.6 Ordinary linear regression2.6.1 One independent variable2.6.2 Coefficient of determination (R2)2.6.3 More than one independent variable2.6.4 Regularization, duality and the Gram matrix2.7 Entropy and information2.7.1 Kullback–Leibler divergence2.7.2 Mutual information2.8 Exercises