Standard Deviation Calculator
| Numbers : | |
| Type : | |
| σ : |
Population Standard Deviation
Formula:
\sigma=\sqrt{\frac{\sum(x_i-\bar{x})^2}{N}}
Sample Standard Deviation
Formula:
\sigma=\sqrt{\frac{\sum(x_i-\bar{x})^2}{n-1}}
| N | = | population size |
| n | = | sample size |
| xi | = | ith number in list |
| x̄ | = | mean of all numbers in list |
How do I use the Standard Deviation calculator?
- Enter the numbers for which you would like to find the standard deviation
- Separate each number with a comma
- Select whether to find the population or sample standard deviation
- See the answer appear instantly