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 “Number of Standard Deviations from the Mean”. You can also use the search.
Number of standard deviations from the mean is also called Z-score (Standard score) is a measure of the relative spread of an observed or measured value, which shows how many standard deviations make up its spread of the relative average value. This is a dimensionless statistical indicator used for comparing values of different dimensions or scales of measurements.