In an experiment that is repeated several times, the mean value can be found (after omitting anomalous results). Then the uncertainty can be found from the range of results used to find the mean.

E.g. 3.8, 4.0, 4.1, 3.9, 4.2

The mean = 4

The furthest two integers away from this are: 4.2 and 3.8

They are both 0.2 away from the mean so the uncertainty is +0.2

If the lowest is 3 away from the mean, and the highest is 7, then the uncertainty would be the largest (so 7).

## Comments

No comments have yet been made