Suppose you are given a messy dataset with missing values, d... | Interview Question
IntermediateTECHNICALTEXT
Suppose you are given a messy dataset with missing values, duplicate records, and a few suspicious outliers. How would you decide what to clean, what to keep, and what to document?
Data Scientist
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Related Keywords
How would you decide whether an outlier is an error or a real signal?When would you impute versus drop missing data?What would you record so the analysis is reproducible?