Which of the Following Statements A), B) or C) Is

question 51

Multiple Choice

Which of the following statements a) , b) or c) is false?

• A) Once we've loaded our data into s KNeighborsClassifier, we can use it with the test samples to make predictions. Calling the estimator's predict method with the test samples (X_test) as an argument returns an array containing the predicted class of each sample: predicted = knn.predict(X=X_test)
• B) If predicted and expected are arrays containing the predictions and expected target values, respectively, evaluating the following code snippets in IPython interactive mode displays the predicted and expected target values for the first 20 test samples: predicted[:20]
• Expected[:20]
• C) If predicted and expected are arrays containing the predictions and expected target values, respectively, the following list comprehension locates all the incorrect predictions for the entire test set-that is, the cases in which the predicted and expected values do not match: wrong = [(p, e) for (p, e) in zip(predicted, expected) if p != e]
• D) All of the above statements are true.

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