The Spread
A easy Python mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Python
- Difficulty
- easy
- Seniority
- L4
Interview Prompt
Given a list of numbers, return the sample variance (sum of squared deviations divided by n-1), rounded to 2 decimals. Return 0.0 when fewer than 2 numbers.
Summary
Data spread around a center. The range matters.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your python solution with real code execution
- Get instant feedback and a hire/no-hire decision