📊 Pandas
Q. Which pandas method is used to change column names in-place?
  • (A) columns()
  • (B) rename(columns=..., inplace=True)
  • (C) set_columns()
  • (D) update_columns()
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✅ Correct Answer: (B) rename(columns=..., inplace=True)

Explanation: By using rename() with the inplace=True argument, the column names can be modified directly in the existing DataFrame.

Explanation by: Sikhar Chaudhary
By using rename() with the inplace=True argument, the column names can be modified directly in the existing DataFrame.

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