Top 23
Prep plan
Updated weekly · Last refresh Oct 17
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Intercom Data Scientist Interview Questions

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

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1
A/B Testing & ExperimentationStart here. 5 questions · ~46 min
Pricing Page Experiment DesignHard

Design an end-to-end A/B test for a pricing page, including MDE, guardrails, analysis plan, and a ship decision.

Guardrail MetricsSample SizeA/B TestingIIntercom
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 MismatchIIntercom
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2
SQL & Data Manipulation3 questions + 1 drill · ~38 min
Retention Rate by Cohort in SQLMedium
Practice

Calculate monthly cohort retention rates by joining users to dated events and counting distinct active users.

Date FunctionsData AnalysisCTEsIIntercom
Running Message Totals in SQLMedium
Practice

Calculate daily and cumulative message totals per user within a 30-day period.

Date FunctionsData ManipulationAggregationsIIntercom
Compute DAU Rate by MarketMedium
Practice
Practice drill

Calculate daily TikTok DAU and the percentage of eligible market users active each day.

MetricsDate FunctionsJoinsTikTok
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3
Product Sense6 questions · ~55 min
Designing Customer Satisfaction MetricsHard

Define a reliable customer satisfaction metric for Intercom conversations, including measurement design, bias controls, and success criteria.

product metricsMetricsCustomer SuccessIIntercom
Diagnosing a Daily Active User DropHard

Diagnose a 5% drop in Intercom daily active users, separating data quality issues from real changes in user behavior.

product analysisMetricsData AnalysisIIntercom
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4
Behavioral & Leadership7 questions · ~65 min
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5
More topics2 questions · ~18 min
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 IndicatorsDiagnosisIIntercom
Explaining Statistical SignificanceMedium

Explain statistical significance, p-values, uncertainty, and practical importance to a non-technical audience.

Hypothesis TestingCommunicationStatistical SignificanceIIntercom

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