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Practice multiple choice certification questions for Chartered AI Engineering Professional - CAiEP and review the explanation after each answer.

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Review the keyed rationale after answering so the correct ARTiBA service choice and each distractor stay connected.

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Flashcard Practice Chartered AI Engineering Professional - CAiEP Multiple Choice

A transaction amount column contains values such as "$1,250.00", "1250", and "N/A". What preprocessing should occur before modeling?

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Sort the values alphabetically and use the sorted position as the transaction amount. Parse valid amounts to a common numeric type and handle nonnumeric entries with a defined rule. Keep the strings unchanged because most models infer currency formats during training. Convert every amount to zero so the column has a consistent numeric type.

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