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

Source:

• 202009011233 Statistics - Khan Academy

Tags:

• statistics

Relevant:

• 113.022 Statistics - Average, Mean, Mode, Dispersion, Range
• 113.025 Statistics - Normal distribution