probability

noun (plural probabilities)

• the extent to which something is probable; the likelihood of something happening or being the case:the rain will make the probability of their arrival even greater
• a probable or the most probable event:for a time, revolution was a strong probability the probability is that it will be phased in over a number of years
• Mathematics the extent to which an event is likely to occur, measured by the ratio of the favorable cases to the whole number of cases possible:the area under the curve represents probability a probability of 0.5