4.3.2 - Steps in Data Processing
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Practice Questions
Test your understanding with targeted questions
What is the purpose of data cleaning?
💡 Hint: Think about the importance of accuracy in data.
What do we achieve through data transformation?
💡 Hint: Consider how data needs to be presented for computations.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is data cleaning primarily concerned with?
💡 Hint: Think about the state of data before analysis.
True or False: Data transformation includes converting categorical variables into numerical ones.
💡 Hint: Review the methods used to prepare data for analysis.
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Challenge Problems
Push your limits with advanced challenges
You have a dataset containing 1000 entries, 10% of which are duplicates. Suggest a method for dealing with duplicates while ensuring the integrity of the original dataset.
💡 Hint: Consider what tools might assist in identifying duplicates.
In a data analysis project, you have extensive data on customer purchases but find it overwhelmingly large. Discuss a strategy for data reduction that maintains crucial information.
💡 Hint: Think about how you could describe the essence of your dataset in fewer dimensions.
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