Standard Deviation Calculator
Calculate standard deviation and variance.
- Count
- 6
- Mean
- 18
- Variance
- 182
- Standard deviation
- 13.490738
Paste a list of numbers to compute the mean, variance and standard deviation, for a sample or population.
How to use
- Paste your numbers.
- Choose sample or population.
- Read the standard deviation.
Frequently asked questions
- Sample vs population?
- Sample divides by n−1 (for a subset); population divides by n (for all data).
- What does it measure?
- How spread out the numbers are around the mean.