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Statistics & Experimentation Interview Questions

Review this list of 72 statistics & experimentation interview questions and answers verified by hiring managers and candidates.

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How would you design an analysis to understand what drives long-term user retention in a subscription service?
Data Scientist
Statistics & Experimentation
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The product team reports a decline in 30-day user retention. How would you approach this problem?
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Statistics & Experimentation
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Statistics & Experimentation
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You’re given product adoption data across regions—how would you determine where the rollout was most successful and why?
Data Scientist
Statistics & Experimentation
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Data Scientist
Statistics & Experimentation
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Describe hypothesis testing and p-values in layman’s terms.
Data Scientist
Statistics & Experimentation
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Data Scientist
Statistics & Experimentation
Explain the statistical background behind power.
Data Scientist
Statistics & Experimentation
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Data Scientist
Statistics & Experimentation

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Why might an unbiased estimator not always be preferred over a biased one?
Data Scientist
Statistics & Experimentation
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Data Scientist
Statistics & Experimentation
Explain the Central Limit Theorem (CLT) and why it is useful.
Data Scientist
Statistics & Experimentation
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Data Scientist
Statistics & Experimentation
How would you explain the importance of sampling distribution in inferential statistics?
Data Scientist
Statistics & Experimentation
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Data Scientist
Statistics & Experimentation
Say you are testing hundreds of hypotheses, each with a t-test. What considerations would you take into account when doing this?
Data Scientist
Statistics & Experimentation
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Data Scientist
Statistics & Experimentation
What are the common pitfalls of A/B testing?
Data Scientist
Statistics & Experimentation
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Data Scientist
Statistics & Experimentation
What is A/B testing and when should it be used?
Data Scientist
Statistics & Experimentation
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Data Scientist
Statistics & Experimentation
Compare covariance and correlation.
Data Scientist
Statistics & Experimentation
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Data Scientist
Statistics & Experimentation

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