Outlier Calculator

Find statistical outliers in your dataset using the IQR method

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Understanding Outliers

Outliers are data points that significantly differ from other observations in a dataset. They can be identified using several methods:

IQR Method (Used in this calculator)

  1. Calculate Q1 (25th percentile) and Q3 (75th percentile)
  2. Find IQR = Q3 - Q1
  3. Calculate fences: Lower = Q1 - 1.5×IQR, Upper = Q3 + 1.5×IQR
  4. Values outside these fences are outliers