Outliers

Definition

Outliers are data points that significantly deviate from the overall pattern or trend of a dataset. They can skew statistical analyses and affect the accuracy of results.

Related terms

Mean Absolute Deviation (MAD): MAD measures how spread out data points are around the mean value. Outliers can greatly impact MAD.

Box-and-Whisker Plot: This graphical representation displays key statistics such as median, quartiles, and outliers in a dataset.

Data Cleaning: The process of identifying and handling outliers is part of data cleaning, which involves removing or correcting errors or inconsistencies in datasets before analysis.