### GIGAMIND

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113 Math

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113.024 Statistics - Judging outliers in a dataset

# Judging outliers in a dataset

If a number below the first quartile is less than `1.5 * IQR`

then it is an outlier. Same for a number greater than the third quartile

- $$Q_1 - (1.5 * IQR)$$
- $$Q_3 + (1.5 * IQR)$$

`IQR`

= Interquartile range

##### Tags:

- statistics