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freeCodeCamp/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/data-cleaning-duplicates.md
Oliver Eyton-Williams 4a74567986 fix: remove title from Chinese chals
2020-10-06 23:10:08 +05:30

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id, challengeType, isHidden, videoId
id challengeType isHidden videoId
5e9a093a74c4063ca6f7c15f 11 false kj7QqjXhH6A

Description

More resources: - Notebook

Tests

question:
  text: |
    The Python method `.duplicated()` returns a boolean Series for your DataFrame. `True` is the return value for rows that:

  answers:
    - |
      contain a duplicate, where the value for the row contains the first occurrence of that value.
    - |
      contain a duplicate, where the value for the row is at least the second occurrence of that value.
    - |
      contain a duplicate, where the value for the row contains either the first or second occurrence.
  solution: 2