Standard Deviation Calculator
Paste or type your data and see the standard deviation worked out row by row. Choose sample or population, or enter a frequency or grouped table.
What you can do
- Sample and population standard deviation and variance, side by side
- A working table of x, x minus the mean and its square
- Raw data, frequency tables and grouped tables
- Paste a column straight from a spreadsheet
- The data plotted, with one standard deviation either side of the mean shaded