Standard Deviation Calculator
Calculate the standard deviation and variance of your dataset quickly and accurately.
Separate numbers using commas
Standard Deviation:
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Variance:
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Mean:
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Count:
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Understanding Standard Deviation
Standard deviation measures how spread out numbers are from their average value. It's a crucial statistical measure used in:
- Data analysis and research
- Quality control in manufacturing
- Financial risk assessment
- Scientific experiments
How to Use This Calculator
- Enter your numbers separated by commas
- Choose between Population (all data) or Sample (subset of data)
- View your results instantly