Top 31
Prep plan
Updated weekly · Last refresh Aug 30

AARP Data Scientist Interview Questions

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

31questions
~5htotal time
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1
SQL & Data ManipulationStart here. 5 questions + 1 drill · ~56 min
2
A/B Testing & Experimentation6 questions · ~55 min
Common Pitfalls in Experiment ResultsHard

Identify the main pitfalls that can distort A/B test interpretation and explain how to guard against them.

PeekingNovelty EffectSample Ratio MismatchAARP
Sample Size for Netflix ExperimentHard

Estimate sample size and MDE for a Netflix experiment, then decide whether the test is powered enough to ship.

MDEPower AnalysisSample SizeAARP
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3
Statistics & Probability5 questions · ~46 min
Understanding Type I and Type II Errors in TestingMedium

Differentiate between Type I and Type II errors in hypothesis testing with a practical example.

Hypothesis TestingStatistical SignificanceP-ValuesAARP
Explaining P Values ClearlyEasy

Explain what a p-value means, how it relates to statistical significance, and how to describe it clearly to non-technical stakeholders.

CommunicationStatistical SignificanceP-ValuesAARP
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4
Product Sense5 questions · ~46 min
Measuring Long-Term Redesign ImpactMedium

Assesses your ability to design measurement for long-term value outcomes after product changes.

lifetime valueAARP
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5
Behavioral & Leadership9 questions · ~82 min
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6
More topics1 question · ~9 min
Debugging a Jupyter NotebookHard

Assesses debugging skills, attention to detail, and ability to infer root cause from code.

DebuggingpythonAARP
The finish line: interview-readyComplete all 31 questions plus 1 hands-on drill to finish this plan.