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The A/B Verdict

A medium SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.

Domain
SQL
Difficulty
medium
Seniority
L4

Interview Prompt

For each experiment on the A/B testing platform, show the count of positive outcomes (where the outcome value is greater than zero), the count of non-positive outcomes, and the average outcome value.

Summary

Variant A or Variant B. The conversion numbers pick the winner.

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Write your sql solution with real code execution
  4. Get instant feedback and a hire/no-hire decision

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