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Analytics & Experimentation Interview Questions
Practice 9403 coding, system design and machine learning questions from 546 companies, sorted by role, topic and interview round. Every question has step-by-step hints, a code runner that supports 8 languages and an AI mentor; members also get the full solution walkthrough.
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Showing 61–90 of 218 results
- DoorDashMediumData ScientistDiagnose a Decline in Order Acceptance Rate
Evaluate a sudden drop in Dasher order acceptance rate by verifying data integrity, decomposing segment-level shifts, and designing an experiment to mitigate downstream marketplace impacts.
Analytics & ExperimentationOnsiteProduct AnalyticsMetric DecompositionA/B Testing - DoorDashHardData ScientistDiagnose cold-food spike and design experiments
This question evaluates a data scientist's skills in product analytics, metric design, diagnostics, causal inference, and experimental design for diagnosing cold-food complaint spikes using logs, GPS, weather and complaint labels.
Analytics & ExperimentationOnsite - DoorDashMediumData ScientistDiagnose completed orders drop in Los Angeles
This question evaluates a data scientist's competency in product analytics, causal inference, funnel and metric decomposition, segmentation, and experimentation for marketplace platforms, focusing on diagnosing sustained drops in completed orders.
Analytics & ExperimentationOnsite - DoorDashHardData ScientistEvaluate Account-Partner Onboarding with Success Metrics
This interview question evaluates metric design, causal reasoning, experiment setup, diagnostics, SQL/statistical checks, and recommendations in a realistic interview setting. A strong answer for Evaluate Account-Partner Onboarding with Success Metrics states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.
Analytics & ExperimentationOnsite - DoorDashHardData ScientistEvaluate Biker Feature Success
This question evaluates experimentation and product analytics skills—metric design, causal inference, and marketplace impact assessment—in the context of a two-sided delivery marketplace, with attention to eligibility, routing, and matching effects.
Analytics & ExperimentationOnsite - DoorDashMediumData ScientistEvaluate Courier-Selected Delivery Distance Limits
This question tests your ability to design an A/B test for a marketplace feature while accounting for network effects, trade-offs between supply-side control and demand-side fulfillment, and selecting appropriate metrics.
Analytics & ExperimentationOnsiteA/B TestingMarketplace AnalyticsCausal Inference - DoorDashHardData ScientistEvaluate Dasher Initiatives with A/B Testing and Metrics
This interview question evaluates metric design, causal reasoning, experiment setup, diagnostics, SQL/statistical checks, and recommendations in a realistic interview setting. A strong answer for Evaluate Dasher Initiatives with A/B Testing and Metrics states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.
Analytics & ExperimentationOnsite - DoorDashMediumData ScientistEvaluate Impact of $1 Fee on Fast-Food Profitability
This interview question evaluates metric design, causal reasoning, experiment setup, diagnostics, SQL/statistical checks, and recommendations in a realistic interview setting. A strong answer for Evaluate Impact of $1 Fee on Fast-Food Profitability states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.
Analytics & ExperimentationOnsite - DoorDashHardData ScientistEvaluate Top-Dasher Program's Benefits and Challenges
Evaluate Top-Dasher Program's Benefits and Challenges evaluates metric design, causal reasoning, experiment setup, diagnostics, SQL/statistical checks, and recommendations in a realistic interview setting. A strong answer states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.
Analytics & ExperimentationOnsite - DoorDashHardData ScientistEvaluate a new ranking model
This question evaluates expertise in experimentation design and causal inference within two-sided marketplace environments. It tests the ability to handle interference, SUTVA violations, metric selection, and rollout safety when deploying ranking model upgrades — core competencies for data scientist roles focused on product analytics and A/B testing.
Analytics & ExperimentationOnsite - DoorDashHardData ScientistExperiment on increasing order notifications
This question evaluates a data scientist's skills in experimental design, causal inference, metric definition and aggregation, power/MDE calculation, and cross‑channel attribution for order‑related messaging campaigns.
Analytics & ExperimentationOnsite - DoorDashMediumData ScientistInvestigate Pop-up Impact on Partner Referral Conversions
This interview question evaluates metric design, causal reasoning, experiment setup, diagnostics, SQL/statistical checks, and recommendations in a realistic interview setting. A strong answer for Investigate Pop-up Impact on Partner Referral Conversions states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.
Analytics & ExperimentationOnsite - DoorDashMediumData ScientistMeasure Impact of Merchant Variety on Consumer Experience
This interview question evaluates metric design, causal reasoning, experiment setup, diagnostics, SQL/statistical checks, and recommendations in a realistic interview setting. A strong answer for Measure Impact of Merchant Variety on Consumer Experience states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.
Analytics & ExperimentationOnsite - ExpediaHardData ScientistChoose KPIs and prove impact with experiments
This question evaluates a data scientist's competency in KPI engineering, causal inference, experiment design, metric validation, and multi-touch attribution within the Analytics & Experimentation domain and is focused on profit-oriented search ranking.
Analytics & ExperimentationOnsite - FigmaMediumData ScientistClarify an Ambiguous Product Question and Define a Metric
This question tests the ability to transform an abstract product objective into a rigorous measurement framework, focusing on metric selection and experimental design.
Analytics & ExperimentationOnsiteAnalyticsProduct MetricsExperimentation - GleanEasyData ScientistHow to measure product success?
This question evaluates a data scientist's competency in product analytics, metric definition, experiment design, and causal inference, including articulation of a north-star metric, supporting funnel and guardrail metrics, and handling confounding, seasonality, and heterogeneous effects.
Analytics & ExperimentationOnsite - GleanMediumData ScientistProduct Case: Define Success Metrics for a Product, Using Enterprise Search as Example
A data scientist product case: define how to measure the success of a product, practiced on an enterprise search tool. Tests building a metric hierarchy with a north star, input metrics and guardrails, separating users from paying customers, defining a successful search and attributing changes causally.
Analytics & ExperimentationOnsite - GoogleHardData ScientistAnalyze time series and design validation experiment
This problem tests the ability to detect structural changes in time-series data and design a rigorous A/B testing strategy to measure the impact of an intervention on count-based metrics.
Analytics & ExperimentationOnsiteTime SeriesCausal InferenceA/B Testing - GoogleHardData AnalystChoose a North Star Metric for a Malicious-Webpage Classifier
Choose and measure a malicious-webpage classifier metric using exposure-weighted recall, false-warning guardrails, and unbiased label audits.
Analytics & ExperimentationOnsite - GoogleMediumData ScientistDesign A/B Test for Google Maps UI Change
This interview question evaluates metric design, causal reasoning, experiment setup, diagnostics, SQL/statistical checks, and recommendations in a realistic interview setting. A strong answer for Design A/B Test for Google Maps UI Change states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.
Analytics & ExperimentationOnsite - GoogleMediumData ScientistDesign A/B Test for Subscription Price Increase Effectiveness
Evaluates experiment design for SaaS subscription pricing and a multivariate sign-up CTA test. Strong answers address pricing-test risks, LTV metrics, factorial design, interaction effects, and guardrails.
Analytics & ExperimentationOnsite - GoogleEasyData ScientistDesign tests to measure latency impact
A Google Data Scientist onsite case on measuring the causal impact of reduced YouTube video-start latency on engagement. It spans A/B design (primary metric, diagnostics, error/buffering guardrails), randomization unit and interference, power/MDE for heavy-tailed watch time, variance reduction (CUPED, stratification), analysis of conflicting movements, ratio-metric decomposition with Simpson’s paradox, and propensity score matching when randomization isn’t possible.
Analytics & ExperimentationOnsite - GoogleMediumData ScientistDiagnose a metric drop in search time
This question evaluates a data scientist's competency in precise metric and population definition, time‑to‑event and survival/hazard modeling, time‑series decomposition and change‑point analysis, instrumentation and traffic forensics, and experimental design for root‑cause identification.
Analytics & ExperimentationOnsite - GoogleHardData ScientistDiagnose and reverse an adoption-rate decline
This question evaluates a data scientist's competency in product analytics and experimentation, covering precise metric definition and validation, instrumentation and event quality checks, rapid triage of adoption regressions, hypothesis generation, experiment design, and causal inference.
Analytics & ExperimentationOnsite - GoogleMediumData ScientistHow would you use propensity score matching here
Evaluates proficiency with propensity score matching and broader causal inference concepts for observational treatment effect estimation, including identification assumptions, propensity score estimation and covariate selection, matching algorithms and common support, balance diagnostics, choice of estimand (ATE vs ATT) and uncertainty quantification, plus sensitivity checks and alternative methods. Common in Analytics & Experimentation interviews for Data Scientist roles because it probes understanding of confounding and identification in nonrandomized settings and requires intermediate-to-advanced applied statistics reasoning about methodological trade-offs.
Analytics & ExperimentationOnsite - GoogleHardData AnalystInvestigate a Decrease in Webpage Warnings
Diagnose falling malicious-webpage warnings by decomposing traffic, scoring, flags, rendering, and labels to separate improvement from failure.
Analytics & ExperimentationOnsite - GoogleHardData AnalystInvestigate a Drop in Sales
Use a structured sales-drop investigation covering metric definitions, data quality, funnel decomposition, segmentation, and causal evidence.
Analytics & ExperimentationOnsite - GrindrMediumData ScientistEvaluate Dating App Product Changes
This question tests the ability to design an A/B test for a two-sided marketplace, focusing on network effects, cannibalization of metrics, and the selection of hold-out groups to measure long-term user behavior.
Analytics & ExperimentationOnsiteA/B TestingMarketplace AnalyticsCausal Inference - GustoMediumData ScientistDefine Churn and Design Onboarding Experiment
This question tests the ability to define business-relevant churn metrics for a SaaS platform and design a controlled experiment to optimize user onboarding.
Analytics & ExperimentationOnsiteAnalyticsExperimentationMetrics - Home DepotEasyProduct AnalystDecide whether to keep a negative-margin promotion
This question evaluates proficiency in analytics, experiment design, causal inference, metric definition, and business-impact analysis for a Product Analyst role, including handling noisy cost data and partial customer identifiers.
Analytics & ExperimentationOnsite