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Updated weekly · Last refresh Oct 17

Tiger Analytics Data Scientist Interview Questions

The questions to prepare for a Tiger Analytics Data Scientist interview. Questions from real interview reports rank first. Updated daily.

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1
SQL & Data ManipulationStart here. 7 questions · ~65 min
Max Number from a ListEasy
Practice

Return the maximum number from a list using a simple SQL aggregate.

Basic Algorithmsdatabase queryingpythonTiger Analytics
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2
Product Sense6 questions · ~56 min
Product Sense: Weekend Train TravelMedium

Estimate how many students travel by train between Montreal and Toronto in one weekend.

Estimationmarket analysisTiger Analytics
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3
Machine Learning8 questions · ~74 min
Prime Factorization with SieveHard

Explain how to speed up prime factorization by preprocessing primes with the Sieve of Eratosthenes.

model selectionmodel choicemodel trainingTiger Analytics
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4
Model Evaluation7 questions · ~65 min
Time Series Cross-ValidationHard

Explain how to cross-validate time series data and why it differs from standard k-fold CV.

Cross-ValidationEvaluation Techniquesmodel performanceTiger Analytics
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5
Statistics & Probability7 questions · ~65 min
Longest Common String in Two SentencesMedium

Find the longest common contiguous string between two sentences using tokenization and overlap analysis.

Samplingstatistics fundamentalsprobabilityTiger Analytics
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6
Pipelines5 questions · ~46 min
Designing a Data ModelHard

Design a scalable data model for a new application, balancing OLTP needs, analytics readiness, and schema evolution.

InfrastructureETLdata warehouseTiger Analytics
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7
More topics10 questions · ~93 min
RAG for Sensitive Financial DocsHard

Design a secure RAG system for querying sensitive financial documents with strong access control and auditability.

Language Modelsmulti-step planningreasoning methodsTiger Analytics
Experiment Pitfalls: Network Effects and SRMHard

Identify, detect, and mitigate network effects, spillover, and sample ratio mismatch in online experiments.

experiment designNetwork InterferenceNetwork EffectsTiger Analytics
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