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Data Analyst 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 1–10 of 10 results

  • AffirmMediumData Analyst
    Investigate Rising Loan Delinquency with Stable Approval Rates

    Diagnose rising 30-day loan delinquency, separate borrower-mix shifts from model drift, and evaluate merchant underwriting changes.

    Analytics & ExperimentationTechnical Screen
  • AffirmMediumData Analyst
    Investigate a Quarterly Increase in Loan Delinquency

    Investigate rising delinquency through rate definitions, reporting checks, loan vintages, seasoning, portfolio mix, and within-segment deterioration.

    Analytics & ExperimentationTechnical Screen
  • Capital OneMediumData Analyst
    Compare Two-Year Economics for Renewing or Replacing a Show

    Calculate two-year show profits, derive the success-probability break-even point, and evaluate renewal and profit-improvement choices.

    Analytics & ExperimentationTechnical Screen
  • Capital OneMediumData Analyst
    Set a Minimum Sale Price After Audience Loss and Reinvestment

    Calculate a show’s minimum sale price using lost audience value and reinvestment profit, then assess a 60-million-dollar offer.

    Analytics & ExperimentationTechnical Screen
  • Capital OneEasyData Analyst
    Should a Restaurant Partner with Groupon?

    This question evaluates a candidate's competence in unit economics, break-even and profitability modeling, and the ability to distinguish incremental versus cannibalized customers when assessing voucher-based promotional partnerships, reflecting skills in revenue modeling, cost accounting, and business analytics.

    Analytics & ExperimentationTechnical Screen
  • 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
  • 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
  • RevolutHardData Analyst
    Define Ultra success and detect suspicious transactions

    This question evaluates a candidate's skills in product analytics, cohort and retention measurement, SQL-based metric design and segmentation, and rule-based fraud detection using transactional and activity data.

    Analytics & ExperimentationTechnical Screen
  • StripeMediumData Analyst
    Evaluate Stripe Capital Loan Performance

    This question evaluates a data analyst's competency in product analytics, metric design, cohort and segment analysis, and causal inference for a working-capital loan product.

    Analytics & ExperimentationTechnical Screen