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train_test_split X_train, X_test, y_train, y_test = train_test_split(X, y, test_size = 0.2, random_state=123) X_train.shape, X_test.shape # ((12000, 7), (3000, 7)) y_train.shape, y_test.shape # ((12000,), (3000,)) Building the Model, Evaluating the Model, and Making Predictions We are going to