Frequency

In statistics, a frequency distribution is an arrangement of the values that one or more variables take in a sample. Each entry in the table contains the frequency or count of the occurrences of values within a particular group or interval, and in this way, the table summarizes the distribution of values in the sample.

This lesson will explain how to find the standard deviation of a table of values when frequencies are not equal to 1.

Cumulative Frequency corresponding to a particular value is the sum of all the frequencies up to and including that value.