Calculate Sd With Only High And Low And Average

Introduction & Importance

Calculating standard deviation using only high, low, and average values is a useful statistical technique…

How to Use This Calculator

1. Enter the high, low, and average values.
2. Click ‘Calculate’.
3. View the results below and the chart.

Formula & Methodology

The formula to calculate standard deviation (SD) using high, low, and average (mean) values is:

SD = √[(High – Mean)^2 + (Low – Mean)^2] / 2

Real-World Examples

Data & Statistics

Comparison of SD Calculation Methods

Expert Tips

• Always ensure your data is normally distributed for accurate SD calculation.
• Use this tool to quickly estimate SD in situations where full data is not available.

Interactive FAQ

What is standard deviation?

Standard deviation is a statistical measure that quantifies the amount of variation or dispersion of a set of values…

Learn more about standard deviation

Khan Academy’s guide to standard deviation