Standard Error Calculator
Calculate the standard error (SE) of your dataset with our free online calculator. Perfect for statistical analysis and research.
Understanding Standard Error
What is Standard Error?
Standard Error (SE) measures the precision of a sample mean. It indicates how far your sample mean is likely to be from the true population mean.
Formula
SE = s/√n
Where:
s = sample standard deviation
n = sample size
When to Use Standard Error
- Calculating confidence intervals
- Comparing sample means
- Determining sample size requirements
- Assessing measurement precision