IIT JAM Mathematical Statistics 2026 has 60 questions across three sections - 30 MCQs, 10 MSQs, and 20 Numerical Answer Type questions - for 100 marks in 3 hours. Download the last 10 years IIT JAM MS question papers below, then use the topic-wise weightage table to plan where to focus across the 70% statistics and 30% mathematics syllabus.
Official website: jam.iitb.ac.in
- Exam date 2026: February 15, 2026, conducted by IIT Bombay
- Section A: 30 MCQs - 10 of 1 mark each plus 20 of 2 marks each, negative marking applies
- Section B: 10 MSQs at 2 marks each, no negative marking - attempt all
- Section C: 20 NAT questions - 10 of 1 mark each plus 10 of 2 marks each, no negative marking
- Negative marking: minus 1/3 for a 1-mark wrong answer, minus 2/3 for a 2-mark wrong answer in Section A
- Syllabus split: approximately 70% statistics and 30% mathematics
IIT JAM Mathematical Statistics Sample Papers 2026 - Download PDF
| Sample Paper | PDF Download |
|---|---|
| IIT JAM Mathematical Statistics Sample Paper 1 | Download PDF |
| IIT JAM Mathematical Statistics Sample Paper 2 | Download PDF |
| IIT JAM Mathematical Statistics Sample Paper 3 | Download PDF |
| IIT JAM Mathematical Statistics Sample Paper 4 | Download PDF |
| IIT JAM Mathematical Statistics Sample Paper 5 | Download PDF |
PDFs will be updated as new papers are added. Bookmark this page.
| Year | Sets Available | Solutions | Source |
|---|---|---|---|
| 2026 | Single paper | Available | Collegedunia |
| 2025 | Single paper | Available | Collegedunia |
| 2024 | Single paper | Available | Collegedunia |
| 2023 | Single paper | Available | Collegedunia |
| 2022 | Single paper | Available | Collegedunia |
| 2021 | Single paper | Available | Collegedunia |
| 2020 | Single paper | Available | Collegedunia |
| 2019 | Single paper | Available | Collegedunia |
Start with 2024 and 2025 papers - these best reflect current question style and difficulty.
IIT JAM Mathematical Statistics Exam Pattern and Marks Distribution 2026
IIT JAM MS is a 3-hour computer-based test with three sections, each with different question types and marking rules.
- Section A: 30 MCQs, one correct answer. Negative marking: minus 1/3 or minus 2/3 per wrong attempt depending on marks.
- Section B: 10 MSQs, one or more correct answers. 2 marks each. Selecting any wrong option gives zero for that question.
- Section C: 20 NAT questions - type the numerical answer. No negative marking.
- Total: 60 questions, 100 marks, 3 hours
IIT JAM MS Papers from 2019 - Why the Current Format Changes Which Papers to Use
The three-section format with MSQ questions was introduced around 2018-2019. Earlier papers had no Section B, making them poor full-paper simulations for today's exam.
- Use 2019 to 2026 papers for timed full-paper simulation - same format throughout
- Start with 2024, then 2023, then use 2025 as your final mock before the exam
- Pre-2018 papers are useful only for topic-level drilling on specific chapters
IIT JAM Mathematical Statistics Topic Wise Weightage - High Scoring Areas to Focus in Sample Papers
| Topic | Approx. Questions | Difficulty | What to Watch For |
|---|---|---|---|
| Probability Theory | 8-10 | Moderate | Conditional probability, Bayes theorem |
| Standard Distributions | 7-9 | Moderate-Hard | Normal, Poisson, Gamma moments |
| Sequences and Series | 5-7 | Moderate | Convergence tests, power series |
| Differential Calculus | 4-6 | Moderate | Partial derivatives, maxima-minima |
| Linear Algebra and Matrices | 5-7 | Easy-Moderate | Rank, eigenvalues, quadratic forms |
| Point Estimation | 5-6 | Hard | MLE, UMVUE, Cramer-Rao bound |
| Testing of Hypotheses | 5-6 | Moderate-Hard | Neyman-Pearson lemma, UMP tests |
| Sampling Distributions | 4-5 | Moderate | Chi-square, t, F distributions |
| Random Variables and Expectation | 4-5 | Easy-Moderate | CDF derivations, MGF |
| Integral Calculus | 3-4 | Moderate | Double integrals, beta-gamma functions |
Do not skip Sequences and Series or Linear Algebra. These are in the 30% mathematics portion and straightforward to score - many students drop these marks unnecessarily.
IIT JAM Mathematical Statistics Sample Paper Video Solutions 2026 - Watch Before You Start Solving
Watching one expert solve a full IIT JAM MS paper shows you how to handle Section B MSQs and budget time across three sections.
Watch: IIT JAM Mathematical Statistics 2026-2027 - Past Year Paper Solved with Expert Answer Key
Channel: Sourav Sir's Classes | Duration: Full paper walkthrough
How to Use IIT JAM Mathematical Statistics Sample Papers to Clear in First Attempt
Solving papers is not the method. Categorizing wrong answers by section type is.
- Section A errors: Split into concept gaps and calculation errors. Concept gaps go on your revision list; calculation errors go on a pre-submit checklist.
- Section B errors: Find whether you selected an extra wrong option or missed a correct one - each points to a different gap.
- Section C errors: Decide if the mistake was in setup, computation, or rounding. Setup errors need concept work; computation errors need a drilled routine.
- Section B plus C together carry 50 marks with no negative marking. Scoring below 40 here is your primary fix target before tackling Section A improvement.
IIT JAM MS Section C NAT Strategy - How to Score Full Marks in Numerical Answer Type
Section C has no negative marking. Leaving questions blank loses marks with zero upside - attempting everything costs nothing.
- Attempt every Section C question - blank and wrong both score zero, so there is no reason to leave one empty
- Write the full setup first, then compute - NAT questions done in your head almost always carry errors
- Check units at every step - computing variance when the answer needs standard deviation is the most common NAT mistake
- Round only at the final step - IIT JAM checks NAT answers within a defined accuracy range
IIT JAM Mathematical Statistics 30 Day Preparation Plan Using Sample Papers
- Week 1 - Solve the 2024 paper untimed. List the topic behind every wrong answer and separate Section A errors from Section B and C errors. This list is your study plan.
- Week 2 - Drill the top three weak topics using PYQs from 2019 to 2023 as topic practice, not full papers. After each session, solve 5 NAT questions from that topic under a timer.
- Week 3 - Solve 2023 and 2022 papers under full 3-hour exam timing. Track whether your Section B plus C scores improved over Week 1.
- Week 4 - One full paper daily. Final 2 days: review your error log only. No new papers.
FAQs on IIT JAM Mathematical Statistics Sample Papers 2026
Ques. How many IIT JAM Mathematical Statistics sample papers are enough to clear in first attempt?
Ans. 8 to 12 full papers from 2019 to 2026, worked with a proper error log. Solving more papers without reviewing wrong answers rarely improves your rank.
Ques. Which IIT JAM MS paper year should I start with?
Ans. Start with 2024, then 2023. Save 2025 as your final mock one week before the exam.
Ques. Are IIT JAM Mathematical Statistics PYQ questions repeated in new papers?
Ans. Exact repeats are rare, but concept patterns repeat. MLE derivations, Bayes theorem, and matrix rank problems appear in different forms almost every year.
Ques. Where can I download IIT JAM Mathematical Statistics question papers with solutions for free?
Ans. Collegedunia's IIT JAM question paper page has papers from 2017 onwards with answer keys. The official IIT JAM website archives past papers too.
Ques. Can I clear IIT JAM Mathematical Statistics in 30 days using only sample papers?
Ans. If your concepts are already covered, yes. Otherwise spend 3 weeks on concepts first and use sample papers only in the final week.
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