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Updated weekly · Last refresh Sep 24

TELUS Digital AI Community Data Scientist Interview Questions

The questions to prepare for a TELUS Digital AI Community Data Scientist interview. Questions from real interview reports rank first. Updated daily.

24questions
~4htotal time
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1
A/B Testing & ExperimentationStart here. 3 questions · ~27 min
Design Test for New FeatureMedium

Design an A/B test for a new platform feature, including success metrics, power, guardrails, and a clear ship decision.

experiment designfeature evaluationA/B TestingTELUS Digital AI Community
Risks of Peeking in Ride-Share TestMedium

Assess why checking experiment results early can inflate false positives and distort ship decisions.

PeekingExperimentationStatistical SignificanceTELUS Digital AI Community
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2
Machine Learning6 questions · ~53 min
Bagging vs BoostingMedium

Explain how bagging and boosting differ in ensemble training, error reduction, and model behavior.

Ensemble Methodsmodel trainingSupervised LearningTELUS Digital AI Community
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3
Statistics & Probability3 questions · ~27 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-ValuesTELUS Digital AI Community
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4
Product Sense3 questions · ~27 min
Precision Recall Trade-offsMedium

Assesses decision-making for operational trade-offs in ML systems.

Trade-offsPrecisionRecallTELUS Digital AI Community
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5
Behavioral & Leadership4 questions · ~35 min
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6
More topics5 questions · ~44 min
Top Power Users QueryMedium
Practice

Use aggregation and ROW_NUMBER to identify the top 10% of TELUS Digital AI Community users by quarterly activity.

sql queryTELUS Digital AI Community
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 IndicatorsDiagnosisTELUS Digital AI Community
Deploying a Machine Learning ModelMedium

Assesses practical system thinking for taking an ML model to production.

TELUS Digital AI Community
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Hands-on SQL practiceWrite and run real queries in the editor. 2 drills · ~20 min
SQL: Top Engaged Save InteractorsMedium
Practice
Practice drill

Use joins, aggregation, a CTE, and ROW_NUMBER to rank Instagram Save users by quarterly engagement within each region.

sql queryData Analysisuser engagementMeta
SQL Top 10% Creators by EngagementMedium
Practice
Practice drill

Rank TikTok creators by 30-day engagement and return the top 10% using aggregation and window functions.

Date Functionssql queryData AnalysisTikTok
The finish line: interview-readyComplete all 24 questions plus 2 hands-on drills to finish this plan.