Enter a list of numbers into the Data Values field and this Dot Plot Calculator will count the frequency of each value and render a dot plot visualization. You'll see a frequency table alongside key stats like mean, median, mode, and range — all from your raw data.
Total Data Points
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Mean
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Median
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Mode
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Range
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Unique Values
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Max Frequency
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A dot plot is a simple statistical chart that displays data points along a number line. Each value in the dataset is represented by a dot placed above its position on the axis, so values that appear multiple times stack vertically — making it easy to see how frequently each value occurs.
Type or paste your numbers into the Data Values field, separated by commas, spaces, or new lines. For example: 2, 3, 5, 5, 7, 9. The calculator will automatically parse your input and generate the dot plot and frequency table.
In addition to the visual dot plot, the calculator shows the mean (average), median (middle value), mode (most frequent value), range (difference between max and min), total count, unique values, and max frequency. A full frequency table with relative and cumulative frequencies is also provided.
A dot plot shows each individual data point as a dot stacked above its value, making it ideal for small to medium datasets where you want to see every observation. A histogram groups values into bins and shows the count per bin using bars — better suited for large datasets with continuous data.
The mode is the value that appears most often. If multiple values share the highest frequency (a multimodal dataset), this calculator displays the smallest of those values. You can inspect the full frequency table to identify all values with the maximum frequency.
Yes, decimal numbers are fully supported. Enter values like 1.5, 2.3, 3.7 and the calculator will plot them correctly and compute accurate statistics. Just make sure values are separated by commas, spaces, or line breaks.
Relative frequency expresses how often a particular value appears as a percentage of the total number of data points. For example, if 7 appears 3 times in a dataset of 15 values, its relative frequency is 20%. This helps you compare how common each value is proportionally.
There is no strict limit imposed by this calculator — you can enter as many values as needed. However, dot plots are most readable and useful for datasets with roughly 5 to 50 values. Very large datasets are often better visualized with histograms or box plots.