Statistics & Probability
Standard Error of the Mean
Standard error of a sample mean.
Formula
Formula
SE = s√n
Variables
| Symbol | Definition | Type & range | Units | Role |
|---|---|---|---|---|
| s | sample std | computed result | — | result |
| n | sample size | computed result | — | result |
Try it yourself
Interactive calculator
Worked examples
Example 1
Givendata = 4, 8, 15, 16, 23, 42
Result5.507570547
Example 2
Givendata = 10, 12, 14, 16
Result1.290994449