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Updated weekly · Last refresh Aug 30

Cox Communications Data Scientist Interview Questions

The questions to prepare for a Cox Communications Data Scientist interview. Questions from real interview reports rank first. Updated weekly.

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~5htotal time
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1
SQL & Data ManipulationStart here. 5 questions + 2 drills · ~62 min
2
A/B Testing & Experimentation3 questions · ~25 min
Pitfalls in Streaming Experiment AnalysisHard

Identify major online experiment pitfalls and explain how they can bias results in a streaming product A/B test.

Network InterferenceNovelty EffectSample Ratio MismatchCox Communications
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3
Machine Learning6 questions · ~50 min
Handling Missing Data in MLMedium

Explain practical strategies for handling missing data and how to validate that the chosen approach improves model performance.

Feature EngineeringData WranglingSupervised LearningCox Communications
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4
Model Evaluation3 questions · ~25 min
Explain Precision Recall TradeoffEasy

Explain precision versus recall in plain language and how the tradeoff affects product decisions.

PrecisionThreshold TuningRecallCox Communications
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5
Metrics3 questions · ~25 min
Diagnose Conversion Drop Post LaunchMedium

Diagnose why conversion fell from 4.8% to 3.1% after a launch by breaking the metric across funnel steps, cohorts, and segments.

Funnel AnalysisConversion RateDiagnosisCox Communications
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6
Behavioral & Leadership11 questions · ~91 min
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7
More topics8 questions · ~66 min
Define Metrics for New FeaturesMedium

Define a success metric for a new feature that captures real user value, not just raw usage.

MetricsFeature Prioritizationuser valueCox Communications
Design a Cold Start RankerMedium

Design a recommendation and ranking system that handles cold start for both new users and new items without hurting feed quality.

Cold StartTwo-Tower ModelsRecommendation SystemsCox Communications
Data Quality in Batch PipelinesHard

Tests designing reliable, repeatable batch pipelines with strong data quality controls.

Batch ProcessingIdempotencyQualityCox Communications
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