Enter the total number of trials and the total number of successes into the calculator. The calculator will display the relative frequency of these trials. This calculator can also determine the number of trials or successes given the relative frequency and the other variable.

Relative Frequency Formula

The following formula is used to calculate the relative frequency of an event.

RF = S/ T
  • Where RF is the relative frequency of the event
  • T is the number of trails
  • S is the number of successes

To calculate a relative frequency, divide the number of trials by the number of successes.

Relative Frequency Definition

A relative frequency in statistics is a relative measure of how often successes come up in some sort of trial or experiment.

How to calculate relative frequency?

How to calculate relative frequency?

  1. First, set up an experiment

    Set up an experiment to measure the results of an outcome.

  2. Next, measure the number of trials

    This will be the total number of trials performed in the experiment.

  3. Next, measure the number of successes

    During the experiment, record each successful event.

  4. Calculate the relative frequency

    Calculate the relative frequency of successes to failures.


What is relative frequency?

Relative frequency is a ratio used to describe the number of successes to total attempts of an event using the greatest common divisor of each number.

How can relative frequency be used?

Relative frequency can be used to simplify very large numbers. For example, if you have an experiment where there are 250 successes for 1000 trails, you can more easily right that as a relative frequency of 1/4.