technology medium Fill in the Blank

The technique that splits data into training and testing sets while preserving class distribution is called ________ Sampling.

  1. Parquet
  2. Stratified
  3. OECD / UNESCO
  4. Principle, Privilege

Answer: Stratified

Stratified sampling maintains class proportions in train/test splits, critical for imbalanced classification tasks. Prevents evaluation bias from skewed splits.

Topic Data Science
Exam Relevance Banking, SSC JE, UPSC
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