4.3.3 - Example of Processing
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Practice Questions
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What is data cleaning?
💡 Hint: Think of how you would make a room tidy.
Why is data transformation necessary?
💡 Hint: Consider the formats you encounter daily.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the purpose of data cleaning?
💡 Hint: Think about why data needs to be neat and tidy.
True or False: Data transformation only means changing data types.
💡 Hint: Think about a broader concept.
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Challenge Problems
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Given a dataset with multiple entries containing NULL values, devise a plan to clean the data effectively and justify your choices.
💡 Hint: Consider the implications of each method on your results.
Describe how you would integrate data from two different sources (e.g., sales records and customer feedback) while ensuring data accuracy.
💡 Hint: Think about data consistency and potential conflicts when combining.
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