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What problem can occur when a dataset contains duplicate records?

Answer and explanation

Correct answer: The analysis may become biased

Duplicate records can cause some observations to be counted more than once. Consequently, certain values or categories may appear more frequently than they should, which can bias the analysis and lead a model to learn misleading patterns. Duplicates should be checked during data cleaning.

Related tags

Artificial IntelligenceClass 12Part B: Subject Specific SkillsUnit 2: Data Science MethodologyDuplicate DataData CleaningData QualityBias

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