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The Spread
A easy Python interview practice problem on DataDriven. Write and execute real python code with instant grading.
- Domain
- Python
- Difficulty
- easy
- Seniority
- mid
Problem
Our A/B testing framework computes statistical significance without external libraries. Write a function called sample_variance that takes a list of numbers and returns the sample variance (dividing by n-1), rounded to 2 decimal places. Return 0.0 for lists with fewer than 2 elements.
Practice This Problem
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