What is a outlier for mathematics

Answer: An outlier stands out from all the other numbers.

Example: 1, 2, 3, 4, 6, 80. In this case, the outlier would be 80.

A value that "lies outside" (is much smaller or larger than) most of the other values in a set of data. For example in the scores 25,29,3,32,85,33,27,28 both 3 and 85 are "outliers". Outliers.