Frequency Distribution Calculator

Enter values separated by commas (e.g., 5, 7, 5, 9, 7)
Statistics

Count occurrences of each unique value in a dataset and create a frequency distribution. Enter comma-separated data values to get frequencies, relative frequencies (%), and cumulative frequencies.

Formula

Frequency = count of each unique value; Relative Frequency (%) = (count ÷ total) × 100; Cumulative Frequency = sum of all frequencies up to current value
  • Frequency: how many times a value appears in the dataset
  • Relative Frequency (%): frequency as a percentage of the total
  • Cumulative Frequency: running sum of frequencies up to and including current value
  • Sorted by numeric value if possible, otherwise alphabetically
  • Maximum 20 unique values displayed

Test scores

Inputs
  • Data (comma-separated): 75, 80, 75, 90, 80, 85, 75, 90

Scores: 75 appears 3 times (37.5%), 80 appears 2 times (25%), 85 appears 1 time (12.5%), 90 appears 2 times (25%). Total: 8 scores.

Frequently asked questions

What is frequency distribution?
A table showing each unique value and how many times it appears (frequency). Useful for understanding data patterns and variability.
What do relative frequencies show?
Relative frequency is frequency as a percentage of total data points, allowing easy comparison across datasets of different sizes.
What is cumulative frequency?
Running total of frequencies up to a given value. Useful for finding medians and percentiles.