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Top 50 Expected Value Interview Questions

The most frequently asked Expected Value questions across all roles and companies, ranked by real interview frequency. Updated weekly.

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Expected Flips for Two Heads
Medium

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

DistributionsExpected ValueConditional Probability
Recently asked
Susquehanna International GroupCITIC GroupAKUNA CAPITAL
Probability of Sum Nine
Easy

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

DistributionsExpected ValueConditional Probability
Recently asked
CME GroupSberbankCitadel Securities
Central Limit Theorem Limits
Medium

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

DistributionsCentral Limit TheoremExpected Value
Recently asked
GoogleQUANTCOUpstart Network
Linear Regression Assumptions
Easy

Walk through the assumptions behind a linear regression model and how each one affects inference.

RegressionVarianceExpected Value
Recently asked
AqrJohn DeereCheck Point Software Technologies
Guaranteed Matching Pair in Socks
Easy

Use worst-case reasoning to find the minimum number of sock draws needed to guarantee a matching pair.

combinatoricsExpected ValueConditional Probability
Recently asked
Susquehanna International GroupVoloridge Investment ManagementIdfc First Bank
Mean and Variance of Data
Easy

Compute the mean and variance of a numeric dataset from first principles.

DistributionsVarianceExpected Value
Recently asked
DatabricksathenahealthParker Hannifin
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