Consider the following least-squares problem:
where
Suppose one least-squares solution is
Which of the following is/are correct?
The least-squares solution is unique.
There are infinitely many least-squares solutions.
The vectors 
produce exactly the same predictions.
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The IIT Madras BS Machine Learning Foundations (MLF) End Term paper sat on 13 Sept 2026, in the May 2026 term: 13 questions for 37 marks in 180 minutes. The first 3 questions are below. Sign in with Google — it is free — to see the whole paper with its answers and explanations, in learning mode or as a timed mock test.
| Feature | MLF End Term 13 Sept 2026 at a glance |
|---|---|
| Term | May 2026 term |
| Subject | Machine Learning Foundations |
| Course code | BSCS2004 |
| Questions | 13 |
| Marks | 37 |
| Duration | 180 min |
| MSQ | 5 |
| Numerical | 6 |
| MCQ | 2 |
| Official paper | Machine Learning Foundations 13 Sep 26 |
| Negative marking | No negative marking. |
| Updated |
