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Prep plan
Updated weekly · Last refresh Oct 17

Flatiron Health Data Analyst Interview Questions

The questions to prepare for a Flatiron Health Data Analyst interview. Questions from real interview reports rank first. Updated daily.

35questions
~6htotal time
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1
SQL & Data ManipulationStart here. 13 questions · ~131 min
Basic R Data ManipulationMedium
Practice

Demonstrate filtering and aggregation techniques on tabular records using PostgreSQL.

data cleaningData ManipulationAggregationsFlatiron Health
R and SQL Coding Under TimeMedium
Practice

Summarize SQL and R assessment question performance using layered CTEs, joins, rankings, and response-time comparisons.

analytics toolsassessmentcomplex queriesFlatiron Health
Data Cleaning and Processing StepsHard
Practice

Clean clinical event records and summarize valid events by active patient and month.

data preparationdata cleaningdata validationFlatiron Health
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2
Statistics & Probability4 questions · ~40 min
Clinical Data Statistical MethodsMedium

Tests your statistical toolkit for analyzing oncology and real-world clinical data.

Hypothesis TestingCausal InferenceStatistical SignificanceFlatiron Health
Handling Missing DataMedium

Tests your approach to missingness, imputation, and bias in clinical datasets.

Hypothesis TestingCausal InferenceData WranglingFlatiron Health
Linear Model in RMedium

Tests your ability to build predictive models and interpret results in R.

RegressionHypothesis TestingCausal InferenceFlatiron Health
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3
Behavioral & Leadership16 questions · ~161 min
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4
More topics2 questions · ~20 min
R Data Manipulation PipelinesHard

Build a reproducible R and dplyr pipeline that ingests, validates, transforms, stores, and monitors a dataset end to end.

Data Qualitydata pipelineETLFlatiron Health
Identifying Trends Over TimeMedium

Tests your time-series thinking and methods for trend detection in outcomes data.

Leading IndicatorsDiagnosisTime SeriesFlatiron Health

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