The concept of relative frequency is key in statistics. If you’re analyzing survey data or measuring probabilities, this concept helps reveal how often something happens compared to the total number of outcomes.
In this guide, we’ll show you how to calculate relative frequency, step-by-step, with a free interactive calculator included.
Table of Contents
🙋♀️ What Is Relative Frequency?
Relative frequency tells us how frequently a value occurs relative to the total number of observations. It is expressed as a fraction, decimal, or percentage.
🔢 Relative Frequency Formula
Here’s the basic formula:
Relative Frequency = Frequency of the Event / Total Number of ObservationsYou can also multiply the result by 100 to convert it into a percentage.
Use the calculator below to quickly determine relative frequency
📊 Relative Frequency Calculator
🔗 Powered by onesdr.com
🧮 Example Calculation
Let’s say a class of 30 students were surveyed about their favorite fruit:
- 12 said Apples
- 10 said Bananas
- 8 said Oranges
To find the relative frequency of students who like Apples:
Relative Frequency = 12 / 30 = 0.4 → 40%
📈 When Should You Use Relative Frequency?
Relative frequency is useful in:
- Survey analysis
- Probability estimation
- Experimental statistics
- Quality control and manufacturing
- Sports performance and analytics
🪄 Tips for Using Relative Frequency
- Use decimal or percentage formats depending on your audience
- Always double-check the total number of observations
- Add all relative frequencies to confirm they sum to 1 (or 100%)