- the ratio of the number of times an event occurs to the number of occasions on which it might occur in the same period.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- the ratio of the actual number of favourable events to the total possible number of events; often taken as an estimate of probability
- the proportion of the range of a random variable taking a given value or lying in a given interval
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012