Distributions for categorical data Bernoulli Distribution Multinomial Distribution Binomial Distribution Trinomial Distribution Negative Binomial Distribution Geometric Distribution Poisson Distribution Zero-Inflated Poisson Model Contingency Table Joint, Conditional, and Marginal Probability for Contingency Tables Specificity and Sensitivity Odds Odds Ratio Tests Cochran-Mantel-Haenszel Test of Conditional Independence In progress Overdispersion