Separate numbers with commas, spaces, or new lines.
Answer:
Standard Deviation (s) =
0Variance (s²) =
0Count (n) =
0Mean (x̄) =
0Sum of Squares (SS) =
0
About the Standard Deviation Calculator
This calculator helps you determine the standard deviation of a set of numbers. Standard deviation is a statistical measure that quantifies the amount of variation or dispersion of a set of data values around their mean (average).
A low standard deviation indicates that the data points tend to be close to the mean, while a high standard deviation indicates that the data points are spread out over a wider range of values.
How to Use: Enter your numbers into the text box above, separating them with commas, spaces, or new lines. Select whether your data represents a 'Sample' or the entire 'Population'. Click "Calculate".
Results Explained:
- Standard Deviation (s or σ): The primary measure of spread. Use 's' for sample data, 'σ' for population data.
- Variance (s² or σ²): The average of the squared differences from the mean (using N or N-1 based on type).
- Count (n): The total number of valid data points entered.
- Mean (x̄ or μ): The average of the data set.
- Sum of Squares (SS): The sum of the squared differences between each data point and the mean.
Calculations based on the provided dataset. Ensure data is entered correctly. Select 'Sample' if your data is a subset of a larger group, 'Population' if it includes every member of the group of interest.