Gambler's Ruin Probability Probability Theory GLM Score Equations Probability & Statistics Population Least Squares Projection Probability & Statistics Independence Through Rectangles Probability & Statistics Likelihood-Ratio Deviance Comparison Theorem for Nested GLMs Probability & Statistics Unbiasedness of Ordinary Least Squares Under Strict Exogeneity Probability & Statistics Interval Probabilities from the Distribution Function Probability Theory Sum Law by Convolution Probability Theory Probability & Statistics Area Probability Theory Subarea