A statistical term describing the total number of trials or observations within a given interval or frequency bin. The frequency bins can be of any size, but they must be mutually exclusive, exhaustive and the data must be grouped.

The absolute frequency is simply the total number of observations or trials within a given range. For example, assume there is a collection of grouped data for the percentage returns for a particular stock, which is ranged from lowest to highest. If there are 56 observations within the 5-7% frequency bin, then the absolute frequency of this bin is 56.