ABSTRACT
The simplest indivisible mutually exclusive outcomes of an experiment are called elementary events ω. The set of all elementary outcomes, which we denote by the symbol Ω, is called the space of elementary events or the sample space. Any subset of Ω is called a random event A (or simply an event A). Elementary events that belong to A are said to favor A. In any probabilistic model, a certain condition set Σ is assumed to be fixed.
