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Updated weekly · Last refresh Aug 30

Appfolio Data Scientist Interview Questions

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

50questions
~7htotal time
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1
SQL & Data ManipulationStart here. 11 questions · ~96 min
Calculate Monthly Sales Growth by Product CategoryMedium
Practice

Calculate month-over-month sales growth for each product category using JOINs and window functions.

JoinsAggregationsAppfolio
Rank Tenants by Payment TimelinessMedium
Practice

Rank tenants within each AppFolio property using payment aggregations and a window function.

Window FunctionsJoinsRankingAppfolio
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2
Model Evaluation11 questions · ~96 min
Evaluate Precision-Recall Tradeoff in ScreeningEasy

Compare two screening models and explain when recall should be prioritized over precision using concrete patient and referral tradeoffs.

F1 ScorePrecisionRecallAppfolio
Choose RMSE vs MAEEasy

Compare two rent prediction models and decide whether MAE or RMSE is the better selection metric given costly large errors.

RegressionMAERMSEAppfolio
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3
Pipelines11 questions · ~96 min
Data Quality in ML PipelinesMedium

Approach for maintaining high quality data across ML pipelines, from ingestion through feature generation and model consumption.

Data QualityInfrastructureData WranglingAppfolio
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4
Product Sense4 questions · ~35 min
Prioritize Features for AI ProductsMedium

A framework for prioritizing AI product features based on user value, feasibility, evaluation quality, and trade-offs.

Feature PrioritizationValue PropositionAppfolio
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5
Machine Learning9 questions · ~78 min
Bias-Variance Tradeoff in PracticeMedium

Explain the bias-variance tradeoff and how it guides model choice, regularization, and generalization performance.

Cross-ValidationBias-Variance TradeoffRegularizationAppfolio
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6
Metrics4 questions · ~35 min
Evaluate Churn Model UsefulnessMedium

Assesses how you validate model utility and operational impact for Appfolio customer success workflows.

KPIsChurnDiagnosisAppfolio
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