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Clean Averages

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

Domain
SQL
Difficulty
easy

Interview Prompt

The merchandising team is benchmarking product quality across the catalog. For each category, they need the average customer rating rounded to one decimal place, but only for products that have actually received a rating. Leave out any category with fewer than three rated products. List the results from highest average rating to lowest.

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