GATE DA 2026 Q37: True statement about ridge regression

Which of the following statements is true for Ridge Regression?

Try it: multiple choice: exactly one correct option

Wrong answer costs 2/3 mark in GATE.

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Answer: D (official GATE 2026 final answer key)

Concept used: Ridge regression adds an $L_2$ penalty that shrinks weights, trading a little bias for lower variance.

First step: Ridge guards against overfitting (good on training, poor on test), uses the $L_2$ norm, and does not target signs of weights.

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Source: official GATE 2026 DA question paper and final answer key, organised by IIT Guwahati. Question paper · Answer key