juniorData Processing
What is data normalization?
Updated May 15, 2026
Short answer
Normalization scales data into a standard range.
Deep explanation
It improves model performance by scaling features, often between 0 and 1 or using z-score normalization.
Real-world example
Preparing data for machine learning models.
Common mistakes
- Applying normalization without understanding distribution.
Follow-up questions
- Normalization vs standardization?
- When not to normalize?