# Relative Frequency

## Definition

Relative Frequency is How often something happens divided by all outcomes.

To compute relative frequency, one obtains a frequency count for a subgroup of the population and a frequency count for the total population. The relative frequency is:

## How to Find Relative Frequency

Relative frequency = Subgroup count / Total count

The above equation expresses relative frequency as a proportion. You can also express it as a percentage. For example, a relative frequency of 1/5 is equivalent to a percentage of 20%.

## Examples

1. You has won 3 games from a total of 4 games played
 Count Relative frequency Win 3 3/4 = 75% Lose 1 1/4 = 15%
2. Survey of favorite PC Brand survey
 Count Relative frequency MacBook 10 10/100 = 10% ASUS 20 20/100 = 20% MSI 30 30/100 = 30% ACER 40 40/100 = 40% TOTAL 100 100/100 = 100% = 1

All the Relative Frequencies add up to 1 (except for any rounding error).

Discrete and Continuous Data

Decimals, Fractions, and Percentages

Convert Percents to Fractions

Convert Decimals to Fractions

Data Index