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Updated weekly · Last refresh Aug 30

InMobi Data Scientist Interview Questions

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

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1
Statistics & ProbabilityStart here. 3 questions · ~25 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 SignificanceAnalysisInMobi
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2
A/B Testing & Experimentation4 questions · ~33 min
Ranking Test for App DiscoveryMedium

Design an A/B test for a new app-store ranking algorithm, including primary metrics, guardrails, sample size, and launch criteria.

MDEGuardrail MetricsSample Ratio MismatchInMobi
Common Pitfalls in Experiment ResultsHard

Identify the main pitfalls that can distort A/B test interpretation and explain how to guard against them.

PeekingNovelty EffectSample Ratio MismatchInMobi
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3
Behavioral & Leadership4 questions · ~33 min
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4
More topics7 questions · ~58 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 valueInMobi
Metric Drop Root Cause DiagnosisMedium

Evaluates your troubleshooting process for diagnosing metric regressions.

root cause analysisInMobi
SQL Window Functions for Rolling MetricsMedium

Assesses your SQL skills for time-based metrics using window functions.

InMobi
Ensembles and Overfitting PreventionMedium

Assesses your machine learning practices for robust performance and generalization.

Deep LearningInMobi
Investigate Sudden DAU DipMedium

Assesses your product analytics approach to diagnosing user engagement drops on InMobi.

product metricsuser engagementInMobi
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Top Ad Campaigns by ConversionMedium
Practice
Practice drill

Rank InMobi Exchange campaigns by conversion rate using joins, aggregation, a CTE, and deterministic ordering.

sql queryperformance analysisInMobi
SQL Join and SortingMedium
Practice
Practice drill

Join InMobi campaigns to advertisers and return matched names in separate ascending and descending campaign-order blocks.

Joinssql queriesInMobi
SQL Funnel Drop-Off AnalysisHard
Practice
Practice drill

Measure sequential Airbnb Homes funnel engagement and drop-off using CTEs, joins, aggregation, and LAG.

sql queryData Analysisuser engagementAirbnb
The finish line: interview-readyComplete all 18 questions plus 3 hands-on drills to finish this plan.