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Statistical graph maker

Paste one numerical data series. The tool draws the selected graph and calculates the mean, median, standard deviation and frequency table.

Number of observations: —

Fill in the fields above — the result is computed on this page.

Mean
—
Median
—
Sample standard deviation
—
Minimum
—
Maximum
—

Data graph

The histogram and polygon use the selected number of equal-width bins. The ECDF shows the share of observations less than or equal to x.

Graph data table

Value or interval Frequency Cumulative count Share
Fill in the fields above — the result is computed on this page.
What these numbers mean
  • The graph describes the supplied data; by itself it does not prove normality or causation.
  • The mean is sensitive to outliers, while the median is usually more resistant.

Up to 5,000 numbers. The graph does not replace data quality checks, missing-data analysis or model selection.

How to use this page
  1. Paste your numerical data.
  2. Choose a histogram, frequency polygon or ECDF.
  3. Compare the graph with the table and descriptive statistics.

What this page does not do: Up to 5,000 numbers. The graph does not replace data quality checks, missing-data analysis or model selection.

Further reading

A histogram groups numbers into bins and shows their frequencies. A frequency polygon connects the centers of the same bins. An ECDF does not group observations: at each value it shows the proportion less than or equal to that value.

Changing the number of bins can change the visual shape of a histogram, so compare several settings and consult the table.

Frequently asked questions

How many bins should I use?

There is no single correct count. Start with 6–10 and check whether your conclusion changes only because of binning.

When is an ECDF useful?

Use it when you want to preserve every observed value and read cumulative proportions without arbitrary bins.

See also

← All calculators

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