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Class 8 Artificial Intelligence — Chapter 3: Data and AI
6 practice questions · 2 Easy · 2 Medium · 2 Hard
Free NCERT-aligned multiple-choice practice for Class 8 Artificial Intelligence, Chapter 3 (Data and AI). Practise timed Easy, Medium and Hard quizzes with instant explanations — built for CBSE Board exams, JEE Main and NEET UG. Here are a few sample questions; sign in free to practise all 6.
Sample questions
Q1Easy
Data is:
A.Raw facts/figures (numbers, text, images, audio)✓ correct
B.Only numbers
C.Only text
D.Only sound
Why
Anything that can be stored or analysed.
Q2Medium
Data cleaning means:
A.Handling missing values, duplicates, errors✓ correct
B.Deleting all data
C.Encrypting
D.Compressing
Why
Quality before analysis.
Q3Hard
If data covers only one group, dataset is:
A.Biased / not representative✓ correct
B.Perfect
C.Encrypted
D.Random
Why
Sampling bias propagates to model.
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