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Updated weekly · Last refresh Oct 16

Publicis Groupe México Data Scientist Interview Questions

The questions to prepare for a Publicis Groupe México Data Scientist interview. Questions from real interview reports rank first. Updated daily.

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SQL & Data ManipulationStart here. 5 questions + 2 drills · ~63 min

Window Ranking for CustomersMedium

Practice

Use joins, aggregation, and ROW_NUMBER to find the top three customers by category revenue.

Window Functionssql query

Publicis Groupe México

Optimizing Slow Queries at ScaleHard

Explain how to diagnose and optimize a slow PostgreSQL query on large Apidel Technologies datasets.

SubqueriesJoinsData Wrangling

Publicis Groupe México

Top Users SQL QueryMedium

Practice

Practice drill

Count valid daily interactions and return the top three users using aggregation and deterministic ranking.

data cleaningDate FunctionsGroup By

SQL: Deduplicate Latest RecordsMedium

Practice

Practice drill

Deduplicate customer records with ROW_NUMBER, retaining the latest record and reporting duplicate counts.

Window Functionsdata cleaningRanking

IBM

NewWave Telecom & Technologies

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A/B Testing & Experimentation4 questions · ~35 min

Small Sample A/B StrategyMedium

Evaluates how you adapt experimentation plans under limited data and maintain decision reliability.

A/B Testingtesting strategy

Publicis Groupe México

Ensuring Significance StepsMedium

Tests your practical process for controlling variance, power, and validity in experiments.

Statistical SignificanceA/B Testing

Publicis Groupe México

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Product Sense3 questions · ~26 min

Measurement Plan for Digital CampaignMedium

Evaluates how you translate campaign goals into a measurable, reliable analytics plan.

digital marketing

Publicis Groupe México

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Behavioral & Leadership7 questions · ~60 min

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More topics6 questions · ~52 min

Explaining P Values ClearlyEasy

Explain what a p-value means, how it relates to statistical significance, and how to describe it clearly to non-technical stakeholders.

CommunicationStatistical SignificanceP-Values

Publicis Groupe México

First Checks for Metric DropsEasy

Outline the first checks to diagnose a sudden drop in a core product metric, starting with data quality, scope, and decomposition.

Lagging IndicatorsLeading IndicatorsDiagnosis

Publicis Groupe México

ML Frameworks You UseMedium

Evaluates your practical tooling and experience building and deploying ML models.

Frameworks

Publicis Groupe México

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The finish line: interview-readyComplete all 25 questions plus 2 hands-on drills to finish this plan.