Scikit-learn is a free and open-source software library specifically designed for machine learning tasks in Python. It offers a comprehensive toolbox for various machine learning algorithms, making it popular for beginners and experienced professionals alike.

Here are three key functionalities of Scikit-learn:

1. Classification: Scikit-learn provides a wide range of algorithms for classifying data into specific categories. This can be used for tasks like spam detection, sentiment analysis, and customer segmentation.

2. Regression: Scikit-learn allows you to build models that predict continuous values based on input data. This is useful for forecasting sales, stock prices, or even weather patterns.

3. Clustering: Scikit-learn facilitates grouping similar data points, uncovering hidden patterns and structures within your data set. This can be used for market segmentation, anomaly detection, and image segmentation.

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