Home › NEET Maths MCQs › Probability
JEE · Maths · Class 12

Probability — NEET Maths MCQs

30 questions written by hand against the NCERT chapter. Every wrong option is explained, not just the right one.

30questions
10/14/6easy / medium / hard
₹0no login
Take the Probability test →
Free · your all-India rank after you finish

Sample questions from this chapter

For P(B)>0, P(A|B) equals
  1. P(A∩B)/P(B) ✓
  2. P(A∩B)/P(A)
  3. P(A)/P(B)
  4. P(A∪B)/P(B)
Answer: A. Conditioning restricts the sample space to B.
Why not B: Uses A rather than the given event B as denominator.
Why not C: Omits the intersection restriction.
Why not D: Uses the union rather than simultaneous occurrence.
If independent P(A)=0.3,P(B)=0.4, then P(A∩B) is
  1. 0.7
  2. 0.1
  3. 0.12 ✓
  4. 0
Answer: C. Multiply: 0.3×0.4=0.12.
Why not A: Adds marginal probabilities.
Why not B: Subtracts them.
Why not D: Confuses independence with mutual exclusion.
Variance of Bin(n,p) is
  1. np(1−p) ✓
  2. np
  3. n²p(1−p)
  4. p(1−p)
Answer: A. Independent Bernoulli variances add to np(1−p).
Why not B: This gives the binomial mean np and omits the failure-probability factor (1−p) required in the variance.
Why not C: Squares the number of trials.
Why not D: Forgets n trials.

These are 3 of the 30 questions in the test. Take the full chapter test →

Read the chapter first

Every NCERT question in this chapter is solved, free: NCERT solutions — Probability →

Other NEET Maths chapters

SetsRelations and FunctionsTrigonometric FunctionsComplex Numbers and Quadratic EquationsLinear InequalitiesPermutations and Combinations

All 27 chapters →

Questions

How many NEET questions are there on Probability?

This chapter test has 30 questions — 10 easy, 14 medium and 6 hard — all written against the NCERT Class 12 chapter.

Is this NEET Maths chapter test free?

Yes. Every chapter test is free with no login, and you get your all-India rank on every one. Nothing on the site is on sale right now.

Do the questions explain the wrong options?

Yes — every distractor carries its own explanation naming the specific misconception that makes a student pick it. That is the part most question banks skip, and it is the part that changes your next attempt.