What is model bias? Why it matters in hiring/finance products.

Bias & fairness

For What is model bias? Why it matters in hiring/finance products., interviewers listen for a crisp definition, how the pieces interact in a real system, and one trade-off or failure mode you have seen or would guard against.

Training data reflects historical bias—models can discriminate in hiring/loans. Mitigate with diverse data, fairness metrics, human oversight, explainability.