The A/B Verdict
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
- L4
Interview Prompt
Our experiment readouts keep disagreeing about how each test in `experiments` actually landed. For every experiment, count the outcomes that came out positive and the ones that didn't, alongside the average outcome.
Summary
Variant A or Variant B. The conversion numbers pick the winner.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write and run your SQL against a real database
- Answer the interviewer's follow-up questions, then get a hire or no-hire decision