Medium Quant Analyst Interview Questions
Everything asked of quant analysts, filtered to the medium end - useful for calibrating where you actually are.
85 questions, 27 of them free to practise right now. The topics that come up most are statistics (31), random variables (15), finance & derivatives (15), brainteasers (13).
- A difference of three normalsMediumRandom VariablesStatisticsView →
- Arbitraging a coupon bond against zerosMediumFinance & DerivativesView →
- Average salary, kept privateMediumBrainteasersStatisticsView →
- Bayes: did it rain?MediumConditional Probability & ExpectationStatisticsView →
- Clock hands overlapMediumBrainteasersView →
- Correlation of two face-countsMediumProbabilityStatisticsView →
- Covariance from a triangular densityMediumRandom VariablesStatisticsView →
- Disease test (Bayes)MediumConditional Probability & ExpectationStatisticsView →
- Filling a pool with the drain openMediumBrainteasersView →
- Fox, goose, beans crossingMediumBrainteasersView →
- Length of a projectionMediumLinear AlgebraView →
- Long-run share of a two-state chainMediumLinear AlgebraView →
- Maximum variance on an intervalMediumRandom VariablesStatisticsView →
- Mean over variance of a nested uniformMediumProbabilityRandom VariablesView →
- OLS slope from four pointsMediumStatisticsView →
- Smallest value of a quadratic formMediumLinear AlgebraView →
- Sum and difference of perfectly correlated variablesMediumRandom VariablesStatisticsView →
- Sum of multiples of 3 or 5MediumBrainteasersView →
- Swapping the regression variablesMediumStatisticsView →
- The German tank problemMediumExpected ValueStatisticsView →
- The profitable range of a short strangleMediumFinance & DerivativesView →
- Three-jug measuringMediumBrainteasersView →
- Uncorrelated but dependentMediumRandom VariablesStatisticsView →
- Variance of hearts in eight cardsMediumCombinatoricsStatisticsView →
- Variance of the larger of two diceMediumRandom VariablesStatisticsView →
- Whose draw is larger?MediumProbabilityView →
- Why divide by n−1?MediumStatisticsView →
- A CLT tail probabilityMediumStatistics Premium
- A family clustered at a round tableMediumCombinatorics Premium
- A relay team with a feudMediumCombinatorics Premium
- Ants on a stickMediumBrainteasers Premium
- Back out the market premium, then price a stockMediumStatisticsFinance & Derivatives Premium
- Both even given an even sumMediumProbabilityConditional Probability & Expectation Premium
- Calendar spread intuitionMediumFinance & Derivatives Premium
- Common divisors of the squaresMediumProgramming & DSA Premium
- Confidence interval with the right pivotMediumStatistics Premium
- Convexity correction signMediumFinance & Derivatives Premium
- Definite integral of x e^x on [0,1]MediumCalculus Premium
- Delta-hedge a two-leg option bookMediumFinance & Derivatives Premium
- Diversified VaR of two positionsMediumStatisticsFinance & Derivatives Premium
- Double integral of x + y over the unit squareMediumCalculus Premium
- Duration-plus-convexity price moveMediumFinance & Derivatives Premium
- Empirical rule between two scoresMediumStatistics Premium
- Equivalent continuously-compounded rateMediumFinance & Derivatives Premium
- Expected sum given both evenMediumConditional Probability & ExpectationExpected Value Premium
- Four distinct birth monthsMediumProbabilityCombinatorics Premium
- Frog in the wellMediumBrainteasers Premium
- How many trials to poll a proportionMediumRandom VariablesStatistics Premium
- Identical balls, no empty boxMediumCombinatorics Premium
- Implicit differentiation on a circleMediumCalculus Premium
- Integral by substitution: 2x e^(x^2)MediumCalculus Premium
- Joint default rangeMediumProbabilityFinance & Derivatives Premium
- Keeping a couple togetherMediumCombinatorics Premium
- Macaulay duration of a coupon bondMediumFinance & Derivatives Premium
- Math books stay togetherMediumCombinatorics Premium
- Mean value theorem for x^2MediumCalculus Premium
- Minimum-variance portfolio weightMediumStatisticsFinance & Derivatives Premium
- Par swap rate definitionMediumFinance & Derivatives Premium
- Paths dodging a closed intersectionMediumCombinatorics Premium
- Poisson thinning: exactly two large ordersMediumRandom Variables Premium
- Pricing a coupon bond off the spot curveMediumFinance & Derivatives Premium
- Prime sumMediumProbability Premium
- Reading an R²MediumStatistics Premium
- Reducing a matrix power with Cayley–HamiltonMediumLinear Algebra Premium
- Regression to the meanMediumBrainteasersStatistics Premium
- Sizing an index-futures hedge in contractsMediumStatisticsFinance & Derivatives Premium
- Splitting a merged Poisson totalMediumStochastic Processes Premium
- Squares on a chessboardMediumCombinatoricsBrainteasers Premium
- The cab problemMediumProbabilityConditional Probability & Expectation Premium
- The missing dollarMediumBrainteasers Premium
- The painted cubeMediumBrainteasers Premium
- The pile that always leaves oneMediumBrainteasers Premium
- Two face cardsMediumProbabilityCombinatorics Premium
- Two positive testsMediumProbabilityConditional Probability & Expectation Premium
- Two reds in a row from a shrinking urnMediumProbabilityConditional Probability & Expectation Premium
- Two-sided p-value of a mean testMediumStatistics Premium
- Variance of a compound daily totalMediumRandom Variables Premium
- Variance of a sum drawn without replacementMediumRandom Variables Premium
- Variance of a two-regime returnMediumRandom VariablesStatistics Premium
- Variance of an aggregate Poisson totalMediumRandom VariablesStochastic Processes Premium
- Variance of coins-per-die headsMediumRandom VariablesStatistics Premium
- When a biased estimator winsMediumRandom VariablesStatistics Premium
- When does the system fail to have a unique solution?MediumLinear Algebra Premium
- Which machine made the defect?MediumConditional Probability & ExpectationStatistics Premium
- Why covariance matrices are PSDMediumStatisticsLinear Algebra Premium
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