Standard Error: SD = 5, n = 50
For a sample of 50 with standard deviation 5, the standard error is approximately 0.707.
How to use this tool
- Enter standard deviation (s) and sample size (n) in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your standard error (se) and the full breakdown beneath it.
Calculate the standard error of the mean for a moderate sample of 50 observations with a standard deviation of 5.
Frequently asked questions
- What is the difference between standard deviation and standard error?
- Standard deviation (SD) describes the variability of individual data points around their mean. Standard error (SE) describes the variability of the sample mean itself — it shrinks as sample size grows: SE = SD / √n.