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Updated weekly · Last refresh Oct 17

SGS Consulting AI/ML Analyst Interview Questions

The questions to prepare for a SGS Consulting AI/ML Analyst interview. Questions from real interview reports rank first. Updated daily.

48questions
~7htotal time
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1
Model EvaluationStart here. 11 questions · ~91 min
Compare Model Performance Across DatasetsMedium

Evaluate how a model performs across datasets using accuracy, precision, recall, and F1, and explain what differences mean.

PrecisionAccuracyRecallSGS Consulting
Evaluate Regression Model PerformanceEasy

Explain how to evaluate a regression model using error metrics, validation, and residual analysis.

CalibrationMAERMSESGS Consulting
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2
Machine Learning22 questions · ~182 min
Tune Model HyperparametersMedium

Choose hyperparameters for a supervised model using cross-validation and regularization tradeoffs.

Hyperparameter TuningCross-ValidationRegularizationSGS Consulting
Regression vs Classification BasicsEasy

Explain how regression and classification differ, including target type, outputs, and how you evaluate each.

Feature EngineeringSupervised LearningSGS Consulting
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3
Statistics & Probability13 questions · ~107 min
Power Analysis for Experiment PlanningMedium

Reason about power analysis when planning an experiment and choosing sample size.

ExperimentationPower AnalysisSample SizeSGS Consulting
A/B Testing Experience and ImplementationEasy

Explain how you have designed and implemented A/B tests, including hypothesis setup, analysis, and decision making.

ExperimentationStatistical SignificanceA/B TestingSGS Consulting
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4
More topics2 questions · ~17 min
Python or R for AnalysisEasy

Tests your ability to use Python or R to analyze data and support analytics tasks.

Data WranglingETLQualitySGS Consulting
Dataset Missing Values ApproachEasy

Tests practical data cleaning decisions and methods for handling missingness.

Data WranglingQualitySGS Consulting
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
The finish line: interview-readyComplete all 48 questions plus 3 hands-on drills to finish this plan.