Trees are the building block of the ensembles that rule tabular ML, so interviewers check you can explain how a split gets chosen and how a lone tree overfits. The Gini-vs-entropy part is a trap: candidates over-weight a choice that barely matters. Here is the answer.
Updated Sep 2026 · Grounded in real GenAI, LLM, and AI/ML engineering interview loops and written to a senior-engineer editorial bar.
Trees are the building block of the ensembles that rule tabular ML, so interviewers check you can explain how a split gets chosen and how a lone tree overfits. The Gini-vs-entropy part is a trap: candidates over-weight a choice that barely matters. Here is the answer.
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