Relative Frequency Calculator
Paste categorical values to compute counts, proportions, and cumulative relative frequencies for quick summaries and charts.
| Value | Frequency | Relative Frequency | Cumulative Relative |
|---|---|---|---|
| Blue | 2 | 25.00% | 25.00% |
| Green | 2 | 25.00% | 50.00% |
| Red | 3 | 37.50% | 87.50% |
| Yellow | 1 | 12.50% | 100.00% |
How to Use This Calculator
- Paste or type your categorical data values into the input field.
- Review the frequency table to see how often each value occurs.
- Use relative frequencies (proportions) for pie charts or probability approximations.
- Leverage cumulative relative frequencies for percentile-based insights.
Formula
Relative Frequency = Frequency / Total Count
Cumulative Relative Frequencyi = Σ Relative Frequency up to category i
Relative frequency tables summarize categorical data and approximate probabilities when samples are representative.
Full Description
Relative frequencies express how often a category appears compared with the total observations. They provide a quick way to understand distributions, create charts, and estimate probabilities. Cumulative relative frequencies accumulate these proportions in sorted order, which is useful for determining quantiles or cutoff thresholds.
This calculator accepts text-based categories or numbers. After parsing, it counts occurrences, computes proportions, and presents results ready for reporting or visualization.
Frequently Asked Questions
Do relative frequencies always sum to 1?
Yes (within rounding error). The cumulative column should end near 1 or 100%.
Can I use numbers instead of text?
Yes. Numbers are treated as string tokens, so identical numeric values are grouped together.
How should I order categories?
Entries are sorted alphabetically/numerically. Rearrange the rows manually if a specific order is needed.