scikit-learn quiz

Test your scikit-learn knowledge with a free interactive quiz — 22 questions with answers and explanations. No signup needed to play.

What is a feature in machine learning?

1. What is a feature in machine learning?
2. What is scikit-learn?
3. Why do you fit a model only on the training set?
4. What is supervised vs unsupervised learning?
5. What does train_test_split do?
6. What is the difference between classification and regression?
7. What does model.score(X_test, y_test) typically return for a classifier?
8. What are X and y conventionally in scikit-learn?
9. Which is an example of a scikit-learn classifier?
10. What two core methods define scikit-learn's estimator API?

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