Cumulative frequency is used to determine the number of observations that lie above (or below) a particular value in a data set. ... The last value will always be equal to the total for all observations, since all frequencies will already have been added to the previous total.

What is the advantage of using a cumulative frequency graph?

Advantage of Cumulative Frequency is that it helps us to observe and hence find out the number of data observations that lie below a particular range of data sets. It also helps us to observe and understand how the values within a particular data set change.

What is the purpose of a cumulative frequency table?

A cumulative frequency table is a chart that shows the popularity or mode of a certain type of data and the likelihood that a given event will fall below the frequency distribution.