MATHEMATICAL CHANCES is a term used to describe the likelihood of an event occurring, which can be expressed in terms of ODDS or PROBABILITIES. The two crossword solutions for this term are ODDS (4 letters) and PROBABILITIES (13 letters). ODDS are a numerical expression that represent the ratio of the probability of an event occurring to the probability of it not occurring. PROBABILITIES are a measure of the likelihood of an event occurring, expressed as a number between 0 and 1.