# The basics

This section explores some very basic theories of probability and statistics that are essential for risk analysis modeling We begin by looking at the concepts that are used in the mathematics of probability distributions. Then we define some basic statistics in common use. We look at a few probability concepts that are essential to understand if one is to be assured of producing logical models. This section is designed to offer a reference of statistical and probability concepts: the application of these principles is left to the appropriate section in ModelAssist.

Probability distribution equations

Descriptive parameters for probability distributions

Probability rules and Venn diagrams

Probability theorems

modeling techniques