4: Probability Last updated Save as PDF Page ID 130243 Kathryn Kozak Coconino Community College 4.1: Empirical Probability 4.2: Theoretical Probability 4.3: Conditional Probability 4.4: Contingency Tables There are several tools you can use to help organize and sort data when calculating probabilities. Contingency tables help display data and are particularly useful when calculating probabilites that have multiple dependent variables.