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Da Iqr Outlier Detection — Free Data Analytics Tutorial

Learn Da Iqr Outlier Detection in Data Analytics with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.

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TL;DR: Learn Da Iqr Outlier Detection in Data Analytics with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.

Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated Jul 14, 2026

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Da Iqr Outlier Detection in Data Analytics

Interquartile Range (IQR) = Q3 - Q1 (middle 50% of data).

Outlier bounds: Lower = Q1 - 1.5*IQR, Upper = Q3 + 1.5*IQR

Values outside bounds are considered outliers.

More robust than mean±2σ for skewed distributions.

Use describe() to get quartiles quickly.

Da Iqr Outlier Detection — Syntax

# Q1, Q3, IQR:
# Q1 = df['col'].quantile(0.25)
# Q3 = df['col'].quantile(0.75)
# IQR = Q3 - Q1
# Outliers: (df['col'] < Q1 - 1.5*IQR) | (df['col'] > Q3 + 1.5*IQR)

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