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Class 12 Mathematics — Chapter 13: Probability
66 practice questions · 22 Easy · 22 Medium · 22 Hard
Free NCERT-aligned multiple-choice practice for Class 12 Mathematics, Chapter 13 (Probability). 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 66.
Sample questions
Q1Easy
P(A|B) =
A.P(A∩B)/P(B)✓ correct
B.P(A)/P(B)
C.P(A∪B)/P(B)
D.P(A)·P(B)
Why
Conditional probability.
Q2Medium
Bayes' theorem reverses:
A.Conditional probability direction (P(A|B) ↔ P(B|A))✓ correct
B.Sum into product
C.Mean and variance
D.Random
Why
Updates probabilities given evidence.
Q3Hard
Total probability theorem decomposes P(B) using:
A.Partition of sample space✓ correct
B.Differentiation
C.Limits
D.Integrals
Why
P(B) = Σ P(B|Aᵢ)P(Aᵢ).
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