5.5 - Removing Duplicates
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Practice Questions
Test your understanding with targeted questions
What is a duplicate in a dataset?
💡 Hint: Think about how counting the same person twice affects totals.
What is the function used to remove duplicates in pandas?
💡 Hint: Think about terms that start with 'd' for 'duplicate'.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary reason for removing duplicates in data?
💡 Hint: Think about how mistakes in counting can affect results.
True or False? The method drop_duplicates() removes duplicates based on specific column values only.
💡 Hint: What does the default behavior do?
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Challenge Problems
Push your limits with advanced challenges
You have a customer DataFrame where customers are listed multiple times with the same purchasing behavior. Describe the steps you would take to ensure that your analysis considers each customer only once.
💡 Hint: What are the two main pandas functions you recall?
Consider a dataset of test scores. If two students have identical scores listed multiple times, what effect would that have on the average score, and how would you address it?
💡 Hint: Why is it critical to have unique scores for accurate statistics?
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