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What is scikit-learn and why is it used?

Mid Python
Quick Answer scikit-learn provides consistent API for ML: fit(X_train, y_train) trains the model, predict(X_test) makes predictions, score() evaluates. Includes: preprocessing (scalers, encoders), feature selection, dimensionality reduction (PCA), classification, regression, clustering, cross-validation, pipelines. Consistent API makes switching algorithms easy for experimentation.

Answer

scikit-learn provides ML algorithms,
preprocessing tools,
model evaluation and pipelines.
S
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This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.

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