Sr Data Scientist Interview Questions

3,380 sr data scientist interview questions shared by candidates

What is MLE? Difference between Random forest and Xgboost model How do you caliberate an ML model ? Explain regularization Explain bias variance trade off How do you handle class imbalance? Some deeper questions on projects
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Sr Data Scientist

Interviewed at Amazon

3.5
Oct 22, 2024

What is MLE? Difference between Random forest and Xgboost model How do you caliberate an ML model ? Explain regularization Explain bias variance trade off How do you handle class imbalance? Some deeper questions on projects

Round 1: 1. Minimum in rotated sorted array (DSA) 2. Resume and project discussion - Did you fine tune SLM, If yes which SLM and how did you fine tuned it ? 3. RAG questions. (How did you improve the retrieval results in RAG). What will you do to maintain the low latency.
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Senior Data Scientist

Interviewed at Birdeye

3.9
Apr 18, 2025

Round 1: 1. Minimum in rotated sorted array (DSA) 2. Resume and project discussion - Did you fine tune SLM, If yes which SLM and how did you fine tuned it ? 3. RAG questions. (How did you improve the retrieval results in RAG). What will you do to maintain the low latency.

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