Maths 2 and Stats 2 in the Same IITM BS Term: Good Idea?

Yes, you can take Maths 2 and Stats 2 in the same IITM BS term. Maths 2 is a corequisite of Stats 2, so the rules allow it. It is a good idea if your Maths 1 and Stats 1 grades were good and you have about 20 free hours a week for the pair. If Maths 1 was a struggle, or your weeks are already full, take Maths 2 first and Stats 2 the term after.

What the rules say

• Maths 2 (Mathematics for Data Science II, BSMA1003) needs Maths 1.
• Stats 2 (Statistics for Data Science II, BSMA1004) needs Stats 1. Its course page also lists Maths 1 as a prerequisite.
• Maths 2 is a corequisite of Stats 2. The handbook says you either finish Maths 2 first or take both together. You cannot take Stats 2 without Maths 2.

So there are only two legal orders: Maths 2 before Stats 2, or both in one term. Our prerequisites guide lists the rest.

How much the two courses overlap

The overlap is smaller than it looks, at least in timing. Here is what each course covers, from the official course pages.

Maths 2 has 11 weeks of coursework, and Stats 2 has 12.

The multivariable calculus in Maths 2 comes in weeks 9 to 11. Stats 2 has already used two-variable ideas in weeks 1 to 5 by then. So in the same term, Maths 2 will not hand you its tools in time. The early Stats 2 weeks lean on Maths 1 skills instead, especially integration from week 9 of Maths 1.

What you do gain is one maths-heavy term instead of two. You stay in "maths mode" and spend your revision weekends on related material.

The real cost: workload and exam days

The DS FAQ puts the effort at about 10 hours a week per course. So the pair is about 20 hours every week. Add a third course and you are near 30.

Both courses are maths-heavy, so your quiz days will be heavy too. Each quiz is one sitting for all your courses. Two subjects share a 2-hour sitting, and three share 3 hours. A missed quiz scores 0, with no make-up. If you are unwell on quiz day, both courses take the hit.

Sample term combinations

These assume you have passed Maths 1, Stats 1, English 1 and Computational Thinking. Python needs Computational Thinking, and English 2 needs English 1.

Who should split them

• Your Maths 1 grade was a D or E, or you had to repeat it.
• You have under 20 free hours a week, or a job or college exams in the same months.
• Calculus is new to you.
• You failed a foundation course last term and need a steadier one.

Who can take them together

• You scored well in Maths 1 and Stats 1 and enjoyed them.
• You can protect about 20 hours a week for 12 weeks.
• You want to finish the foundation level sooner.

Keep the checkpoints in view

If you joined the foundation level from May 2024, you must pass at least 4 courses within 4 terms, 6 within 6, and all 8 within 9. Terms on RKA count. Splitting these two costs one extra term, which is fine when you are on track. If you are close to a checkpoint, think about what failing both would do. You would lose two courses of progress in one term. See foundation checkpoints.

Whichever plan you pick, do your graded assignments yourself. Sharing or copying answers breaks the honour code.

Common questions

If I fail Maths 2, can I still take Stats 2 later?

Only with Maths 2 again, in the same term or before it. The corequisite rule means Stats 2 always needs Maths 2 done or running alongside. Repeating Maths 2 costs the full course fee. See repeating a course.

What if I pass Stats 2 but fail Maths 2 in the same term?

The handbook does not say what happens to the Stats 2 grade in this case. Ask the support team before you plan your next term.

Which one is harder?

It depends on you. Maths 2 is linear algebra and multivariable calculus. Stats 2 is probability models, estimation and testing. Our guides to Statistics 1 and 2 and Maths 1 show how to practise each.

Can I take Stats 2 before Maths 2?

No. The handbook is clear that Stats 2 cannot be done without Maths 2, either before it or in the same term.