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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.

9403
Questions
546
Companies
11
Topics
8
Languages

Showing 61–90 of 218 results

  • DoorDashMediumData Scientist
    Diagnose 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 Scientist
    Diagnose 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 Scientist
    Diagnose 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 Scientist
    Evaluate 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 Scientist
    Evaluate 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 Scientist
    Evaluate 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 Scientist
    Evaluate 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 Scientist
    Evaluate 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 Scientist
    Evaluate 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 Scientist
    Evaluate 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 Scientist
    Experiment 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 Scientist
    Investigate 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 Scientist
    Measure 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 Scientist
    Choose 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 Scientist
    Clarify 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 Scientist
    How 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 Scientist
    Product 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 Scientist
    Analyze 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 Analyst
    Choose 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 Scientist
    Design 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 Scientist
    Design 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 Scientist
    Design 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 Scientist
    Diagnose 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 Scientist
    Diagnose 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 Scientist
    How 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 Analyst
    Investigate 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 Analyst
    Investigate a Drop in Sales

    Use a structured sales-drop investigation covering metric definitions, data quality, funnel decomposition, segmentation, and causal evidence.

    Analytics & ExperimentationOnsite
  • GrindrMediumData Scientist
    Evaluate 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 Scientist
    Define 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 Analyst
    Decide 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