original/raw data in analytics tasks

Why are the original/raw data not readily usable by analytics tasks? What are the main data preprocessing steps? List and explain their importance in analytics.

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Work must be 1 FULL page with 2 to 3 paragraphs (at least 500 Words), single spaced, 12 font Times New Roman. The cover and reference page must be on separate pages with at least 5 references.You should have at least one in text citation for every reference and use references other than or in addition to the uploaded textbook.

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