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Prep plan
Updated weekly · Last refresh Aug 30

CIBC Data Scientist Interview Questions

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

21questions
~3htotal time
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1
Machine LearningStart here. 12 questions · ~98 min
Tune Hyperparameters for Model SelectionMedium

Choose hyperparameters with cross-validation and validation metrics, while balancing bias, variance, and overfitting.

Hyperparameter TuningCross-ValidationRegularizationCIBC
Supervised vs Unsupervised LearningEasy

Explain how supervised and unsupervised learning differ, and ground the distinction in a practical ML example.

Unsupervised LearningFeature EngineeringBias-Variance TradeoffCIBC
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2
Statistics & Probability4 questions · ~33 min
Determining A/B Test SignificanceMedium

Explain how to evaluate whether an A/B test result is statistically significant and how to interpret the result.

marketing experimentStatistical SignificanceAnalysisCIBC
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3
More topics5 questions · ~41 min
Using Data to Influence DecisionsEasy

Share how you used data to shape a business decision, including the analysis, recommendation, and outcome.

User ResearchUser NeedsValue PropositionCIBC
Validate a Model Before DeploymentMedium

Explain how to validate a model before deployment, including thresholds, calibration, and holdout testing.

Cross-ValidationCalibrationThreshold TuningCIBC
Clean Data by Removing DuplicatesEasy

Tests your practical data manipulation skills and attention to data quality.

Data WranglingGroup ByAggregationsCIBC
Handle an Anomaly in DataEasy

Tests your troubleshooting process and how you validate and mitigate data issues in practice.

Data WranglingETLQualityCIBC
Motivation for Data Engineering WorkEasy

Explain what drives your interest in data engineering, grounded in user needs and the value created by reliable data systems.

Jobs to Be DoneUser NeedsValue PropositionCIBC
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
The finish line: interview-readyComplete all 21 questions plus 3 hands-on drills to finish this plan.