frequency distribution table

In Statistics the frequency of an event xi  is the number fi of times the event occurred in the experiment or the study.

We use the term absolute frequencies when the counts fi themselves are given, and we refer to relative frequencies when those are divided by the total number of events:


Example:

To complete the table we add a column with the cumulative absolute frequencies (the addition of the previous frequencies), the relative frequencies, the cumulative relative frequencies and the percentages.

In the example:

 xi  fi Fi  hi Hi
%
 1  4  4 4/31
4/31
  13%
 2  9  13 9/31 13/31
  29%
 3  6  19 6/31
 19/31  19%
 4  7  26 7/31
26/31
  23%
 5  3  29 3/31
29/31
 10%
 6  2  31 2/31    1
  6%
 Σ  31   1
   100%

 

 

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