Short Answer

Primary Effect of Regularization on Bias and Variance

Question: According to Machine Learning Yearning, how does adding regularization (such as L2, L1, or dropout) affect a model's bias and variance?

Sample answer: Adding regularization reduces variance but increases bias.

Key points:

  • Reduces variance.
  • Increases bias.

Rubric: The answer should explicitly state that regularization reduces variance and increases bias.

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Updated 2026-05-26

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