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Which of the following code snippets is accurate for performing scaling on both the training and testing datasets? Question 19 options: scaler = StandardScaler() X_train

Which of the following code snippets is accurate for performing scaling on both the training and testing datasets? Question 19 options: scaler = StandardScaler() X_train = scaler.fit_transform(X_train) X_test = scale.transform(X_test) scaler = StandardScaler() X_train = scaler.fit_transform(X_train) X_test = scaler.fit_transform(X_test) scaler = MinmaxScaler() X_train = scaler.fit_transform(X_train) X_test = scaler.transform(X_test) scaler = StandardScaler() X_train = scaler.fit_transform(X_train) X_test = scaler.transform(X_test)

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