Data cleaning is a fundamental skill for data analysts, and this question evaluates your understanding of the process and your ability to handle messy data effectively. Recruiters want to see a systematic approach and familiarity with tools or techniques used for data preparation. A strong answer outlines specific steps like identifying missing or inconsistent data, handling duplicates, and normalizing formats. Avoid vague responses like "I clean the data" without elaborating on the process. Providing an example of a project where your cleaning process had a significant impact adds depth.
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