Top 50 Distributions Interview Questions
The most frequently asked Distributions questions across all roles and companies, ranked by real interview frequency. Updated daily.
Compute the expected waiting time to see two consecutive heads when flipping a fair coin.
Virtu Financial
Susquehanna International Group
AKUNA CAPITALCompute the mean and standard deviation of a dataset, and distinguish the sample standard deviation from the population version.
Markel
Professional Data Analysts
Arrow ElectronicsExplain the Central Limit Theorem, its assumptions, and when normal approximations break down in practice.
Disney Experiences Technology
U.S. Bank
Upstart NetworkCompute the probability that two fair six-sided dice add up to 9 by counting favorable outcomes over total outcomes.
CME Group
Sberbank
Citadel SecuritiesExplain why sample means become approximately normal and why that matters for inference on product metrics.
Waymo
Fti Consulting
ClaritevCompute the probability that the sum of two fair dice is greater than 8 by counting favorable outcomes.
Bloomberg
Santander
DeloitteCompute the mean and variance of a numeric dataset from first principles.
athenahealth
Databricks
Crux InformaticsGenerate deterministic categorical samples from weighted probabilities using inverse transform sampling.
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