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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is data cleaning?
💡 Hint: Think of how you would make a room tidy.
Question 2
Easy
Why is data transformation necessary?
💡 Hint: Consider the formats you encounter daily.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the purpose of data cleaning?
- To collect data
- To fix discrepancies
- To present results
💡 Hint: Think about why data needs to be neat and tidy.
Question 2
True or False: Data transformation only means changing data types.
- True
- False
💡 Hint: Think about a broader concept.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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.
Question 2
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.
Challenge and get performance evaluation