Dot Plot Frequency Calculator
Turn a list of numbers into a dot-plot frequency table — how often each distinct value appears, shown as dots, counts and percentages.
How it works
For each distinct value: frequency = count of that value · percent = frequency ÷ n × 100
A dot plot stacks one dot per observation above each distinct value, so the height of a column is that value’s frequency. This calculator builds the underlying frequency table — every unique value, how many times it occurs, its share of the total, and a row of dots that mirrors what a hand-drawn dot plot would show. It is the quickest way to see the shape of a small data set: where it clusters, where it gaps, and which value is the mode.
Worked example
For 3, 5, 3, 2, 5, 5, 1, 3 the counts are: 1 → 1, 2 → 1, 3 → 3, 5 → 3. Both 3 and 5 appear three times; the calculator reports the smaller such value, 3, as the mode. With n = 8, the value 3 represents 3 ÷ 8 = 37.5% of the data.
Sources: Dot plot (statistics) — Wikipedia
Frequently asked questions
What if two values tie for most frequent?
The calculator reports the smallest value among those tied for the highest count. The full table shows every value’s frequency so you can see all ties.
Why are the dots capped?
To keep the table readable, each row shows at most 40 dots; the exact frequency is always given in the Frequency column.
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This calculator is for educational purposes. Double-check important results before acting on them.