Top 50 Distributions Interview Questions

Compute the probability that two fair six-sided dice add up to 9 by counting favorable outcomes over total outcomes.

DistributionsExpected ValueConditional ProbabilitySberbankCitadel SecuritiesInsurify

Compute the expected waiting time to see two consecutive heads when flipping a fair coin.

DistributionsExpected ValueConditional ProbabilitySusquehanna International GroupAKUNA CAPITALTower Research Capital

Compute the probability that the sum of two fair dice is greater than 8 by counting favorable outcomes.

DistributionsExpected ValueConditional ProbabilityBloombergSSigMolson Coors

Explain how sample means become approximately normal and why this supports inference from samples.

DistributionsCentral Limit Theoremstatistics fundamentalsWalmart Global TechAKUNA CAPITALPPPG

Compute the mean and standard deviation of a dataset, and distinguish the sample standard deviation from the population version.

DistributionsVarianceExpected ValueArrow ElectronicsQuest DiagnosticsProfessional Data Analysts

Explain the Central Limit Theorem, its assumptions, and when normal approximations break down in practice.

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