Models With Variable Accuracy

A medium SQL mock interview question on DataDriven, with an AI interviewer who asks follow-up questions and a hire or no-hire decision at the end.

Domain
SQL
Difficulty
medium
Seniority
L3

Interview Prompt

We keep an ML model registry where each model appears under several versions, each version carrying its own accuracy score. For each model, show its lowest and highest accuracy, but only for models whose accuracy actually moved between versions.

Summary

Accuracy should be stable. These models are not.

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Write and run your SQL against a real database
  4. Answer the interviewer's follow-up questions, then get a hire or no-hire decision