Data Distribution Explorer
Interactively explore how data distribution shapes affect key statistical measures.
Distribution Histogram
Mean
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Median
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Standard Deviation
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Variance
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Analysis & Interpretation
Select a distribution to see an analysis.
The Meaning of Standard Deviation
For a Normal Distribution (Bell Curve), the standard deviation tells us how spread out the data is in a predictable way. This is often called the 68-95-99.7 rule.