Probability distributions Given that there are two types of random variables (discrete and continuous), we have two types of distributions: 1. Discrete probability distributions, and 2. Continuous probability distributions (also known as probability density function, or density function, or just density). Examples of discrete probability distributions: a. Uniform b. Binomial c. Poisson d. Hypergeometric e. Others Examples of continuous probability distributions: a. Uniform b. Normal c. Exponential d. Gamma e. Others References: Anderson, D.R., D.J. Sweeny, and T.A. Williams (1999): Statistics for Business and Economics. South--Western. Mood, A.M., F.A. Graybill, and D.C. Boes (1974): Introduction to the Theory of Statistics. Third Edition. McGraw-Hill.