What is the definition of cumulative frequency?

Answer by  Clement (1453)

Cumulative frequency is the statistical term used to denote the sum of all frequencies for values lower than the current one. Similarly to frequencies cumulative frequencies can be absolute as well as relative.

Answer by  cathstuff (238)

The cumulative frequency is a running total of frequencies in a frequency distribution. So the cumulative frequency corresponding to a particular value is the sum of all the frequencies up to and including that value. Frequency distributions, usually in the form of tables, are often used to calculate and analyse statistics.

Answer by  kc14 (18)

Given a list of numbers, the "cumulative frequency up to x" is how many numbers there are that are at most x. For example, if your original list was 2,5,0,3,7,9,4,3,2,2, the "cumulative frequency of 2" would be 4 (there are 4 numbers which are at most 2), and the "cumulative frequency of 5" would be 8.