1. For Windows or Linux - Press Ctrl+D
2. For MacOS - Press Cmd+D
3. For iPhone (Safari) - Touch and hold, then tap Add Bookmark
4. For Google Chrome - Press 3 dots on top right, then press the star sign
Enter your set of numbers in the input field. Numbers must be separated by commas.
Press Enter on the keyboard or on the arrow to the right of the input field.
In the pop-up window, select “Find the Sample Standard Deviation”. You can also use the search.
The standard deviation of the sample is a measure of how widely the values in the sample are scattered relative to their average. By definition, the standard deviation is equal to the square root of the variance: The standard deviation does not take into account the magnitude of the values in the sample, but only the degree to which the values are scattered around their mean.