Goldman Sachs Quantitative Analyst Interview Questions

The questions to prepare for a Goldman Sachs Quantitative Analyst interview. Questions from real interview reports rank first. Updated weekly.

Explain how to derive time and space complexity for a coding solution and justify the final Big O bounds.

Detect Recurring Division

Medium

Assesses coding ability and number theory reasoning behind recurring decimals.

Algorithms

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

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

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Adjust Weights After Correlation Change

Medium

Evaluates portfolio reasoning and understanding of correlation-driven risk changes.

Correlation

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Inflation Time Value

Medium

Tests ability to reason about discounting and time value of money.

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Recursion or Coin Toss Brainteaser

Medium

Assesses reasoning ability and comfort with recursion and probability-style logic.

Recursionlinear regression

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Optimization Model Choice

Medium

Evaluates modeling judgment and ability to justify optimization choices.

Machine Learning

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