The Theory of Probability is a branch of mathematics that deals with the study of uncertainties and random events. There are several synonyms that are used to refer to the Theory of Probability. Some of the commonly used synonyms include Probability Theory, Statistical Probability, Chance Theory, Randomness Theory, Stochastic Theory, and Uncertainty Theory. While these synonyms differ slightly in their focus and scope, they all share the core principles of the Theory of Probability. These principles include the mathematical analysis of the likelihood of events and the use of probability distributions to model random variables. The Theory of Probability is an important tool in many fields, including finance, physics, and engineering.