Laboratory Formula
Standard Deviation Formula Formula
Measures the spread and variability of experimental data.
Formula Summary
Standard Deviation Formula
Measures the spread and variability of experimental data.
- Category
- Laboratory
- Equation
- σ = √(Σ(x - μ)² / N)
- Calculator
- Use Standard Deviation Formula Calculator →
Equation
σ = √(Σ(x - μ)² / N)
Variables
- σ = standard deviation
- x = individual value
- μ = mean
- N = number of values
How to Use This Formula
- Identify the known values from the problem statement.
- Convert all values into compatible units.
- Substitute the values into the equation and calculate the result.
- Check that the final answer has the correct unit and meaning.