Implement Stratified Sampling by Country

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

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

Question

Implement Stratified Sampling by Country

PracHub · Accepted Answer

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.

Implement Stratified Sampling by Country

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Implement Stratified Sampling by Country

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