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What difficulty level is this coding question?

This is a medium difficulty Coding & Algorithms question, commonly asked during Technical Screen rounds at Perplexity.

What role is this question designed for?

This question is commonly asked for Data Scientist candidates at Perplexity during technical interviews.

Implement Stratified Sampling by Country | Perplexity Coding Question

Quick Overview

This question evaluates understanding of stratified sampling, proportional allocation across groups, reproducible random sampling, data grouping and edge-case handling in an in-memory dataset.

medium
Perplexity
Coding & Algorithms
Data Scientist

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