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Updated weekly · Last refresh Oct 17

Prosper Marketplace Business Analyst Interview Questions

The questions to prepare for a Prosper Marketplace Business Analyst interview. Questions from real interview reports rank first. Updated daily.

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1
SQL & Data ManipulationStart here. 4 questions · ~41 min
Join Types in Transaction DataEasy

Explain INNER JOIN vs LEFT JOIN and describe a many-to-one relationship using card transaction data.

JoinsData Wranglingmany-to-oneProsper Marketplace
SQL Cohort for First-Payment DelinquencyHard
Practice

Calculate Prosper borrower cohorts with first payments missed within 30 days of loan origination.

Date FunctionsCTEsReconciliationProsper Marketplace
Handling Missing Loan DataHard
Practice

Classify missing repayment rows and NULL amounts for active Prosper loans across reporting months.

missing valuesdata cleaningnull handlingProsper Marketplace
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2
Strategy4 questions · ~41 min
Global Active Investor CountHard

Estimate the global population of active investors using peer-to-peer lending platforms.

Estimationguesstimationanalytical thinkingProsper Marketplace
Annual US Loan Origination EstimateHard

Estimate annual US personal loan originations using explicit assumptions, a structured market-sizing approach, and a reasonableness check.

Estimationguesstimationanalytical thinkingProsper Marketplace
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3
Behavioral & Leadership7 questions · ~72 min
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4
More topics3 questions · ~31 min
Diagnose Conversion Drop Post LaunchMedium

Diagnose why conversion fell from 4.8% to 3.1% after a launch by breaking the metric across funnel steps, cohorts, and segments.

Funnel AnalysisConversion RateDiagnosisProsper Marketplace
Biased Coin IdentificationHard

Determine how many consecutive heads are needed to reach 99% posterior confidence that a selected coin has two heads.

Bayesian ReasoningBiasprobabilityProsper Marketplace
Analyze a Successful CampaignEasy

Describe how you would evaluate a successful marketing campaign using funnel KPIs, conversion, and ROI.

KPIsDiagnosisEngagement MetricsProsper Marketplace

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