## Definition of probability

**:**the quality or state of being probable

**:**something (such as an event or circumstance) that is probable

**:**the ratio of the number of outcomes in an exhaustive set of equally likely outcomes that produce a given event to the total number of possible outcomes

**:**the chance that a given event will occur

**:**a branch of mathematics concerned with the study of probabilities

**:**a logical relation between statements such that evidence confirming one confirms the other to some degree