Edzy
AI TutorResourcesToolsCompareBuy
SearchDownload AppLogin
Edzy

Edzy for Classes 6-12

Edzy is a personal AI tutor for CBSE and State Board students, with curriculum-aligned guidance, practice, revision, and study plans that adapt to each learner.

  • Email: always@edzy.ai
  • Phone: +91 96256 68472
  • WhatsApp: +91 96256 68472
  • Address: Sector 63, Gurgaon, Haryana

Follow Edzy

Browse by Class

  • CBSE Class 6
  • CBSE Class 7
  • CBSE Class 8
  • CBSE Class 9
  • CBSE Class 10
  • CBSE Class 11
  • CBSE Class 12
Explore the CBSE resource hub

Explore Edzy

  • Study Resources
  • Free Study Tools
  • Best Apps for Board Exams
  • Edzy vs ChatGPT
  • About Us
  • Why We Built Edzy
  • Blog
  • CBSE AI Tutor

Support & Legal

  • Help & FAQs
  • Accessibility
  • Privacy Policy
  • Terms & Conditions
  • Refund Policy
  • Cookie Policy
  • Site Directory

© 2026 Edzy. All rights reserved.

Curriculum-aligned learning paths for students in Classes 6-12.

DH
Question Practice

Which of the following statements about handling NaN values is FALSE?

Attempt the question, check the explanation, and continue with similar questions to build confidence before exams.

MCQ_SA
CBSE
Class 12
Informatics Practices
Informatics Practices
Data Handling using Pandas - II
Question Bank

Which of the following stateme...

Single Answer MCQ
Q-00094116

Which of the following statements about handling NaN values is FALSE?

1

df.fillna(0) replaces NaNs with zero.

2

df.dropna() retains all rows.

3

df.fillna(method='ffill') fills NaNs with the last valid observation.

4

Using df.mean() helps estimate missing values.

Previous QuestionNext Question

Video Explanation

Answer

Solution:

Watch Video Solution

Login to get access

Keep Practising

Students who asked this also explored

Continue with nearby questions to strengthen the same chapter concept while you still have the context fresh in mind.

Q1.

What is the primary purpose of the Pandas library in Python?

Single Answer MCQ
View explanation
Q2.

Which of the following is a fundamental data structure in Pandas?

Single Answer MCQ
View explanation
Q3.

What function would you use to read a CSV file into a Pandas DataFrame?

Single Answer MCQ
View explanation
Q4.

Which Pandas function is used to sort a DataFrame?

Single Answer MCQ
View explanation