What does outlier mean?
A reading that is not a noisy measurement of the quantity at all but of something else, such as a depth beam that missed the target and hit the far wall. One outlier can ruin a mean, so outliers are rejected with a median or a gate rather than averaged.
In a lesson
Noise is a reading that is a little wrong. An outlier is a reading that is not a measurement of what you think it is measuring.
Learn it
- Taught in U4.4 Outliers Noise and filtering, University