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CBSE Class 12 Informatics Practices Question 4 of 21

Python Pandas — II — Question 20

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Question 20

Function ............... can be used to drop missing values.

  1. fillna()
  2. isnull()
  3. dropna()
  4. delna()
Answer

dropna()

Reason — The dropna() function in pandas is used to drop rows with missing values.

Source: This question is from Python Pandas — II, Informatics Practices — Class 12, CBSE Board.

Key Concepts Covered

This question tests your understanding of the following concepts from the chapter Python Pandas — II: Question, Drop, Missing, Values, Fillna, Isnull. These are fundamental topics in Informatics Practices that students are expected to master as part of the CBSE Class 12 curriculum.

A thorough understanding of these concepts will help you answer similar questions confidently in your CBSE examinations. These topics are frequently tested in both objective and subjective sections of Informatics Practices papers. We recommend revising the relevant section of your textbook alongside practising these solved examples to build a strong foundation.

How to Approach MCQs

Multiple choice questions test your ability to quickly recall facts and apply concepts. Read all options carefully before selecting your answer. Use the process of elimination to rule out clearly incorrect options first. If two options seem similar, look for the subtle difference that makes one more accurate. For numerical MCQs, verify your answer by substituting it back into the problem.

Key Points to Remember

  • Read the question carefully and identify all parts before answering.
  • Use the terminology specific to this subject and chapter.
  • Review the textbook content for this chapter before attempting questions.
  • Practice writing concise, well-structured answers within time limits.

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