outlier
(noun)
A value in a statistical sample which does not fit a pattern nor describes most other data points.
Examples of outlier in the following topics:
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Fitting a Curve
- Looking at the points and line in the new figure below, this new line does not fit the data well, due to the outlier $(-1,6)$.
- Indeed, trying to fit linear models to data that is quadratic, cubic, or anything non-linear, or data with many outliers or errors can result in bad approximations.
- Here is the approximated line given the new outlier point at (-1, 6).