Medium Statistics Interview Questions
Medium is where most real interview questions sit. This is the statistics set worth spending the most time in.
63 questions, 27 of them free to practise right now.
- A difference of three normalsMediumRandom VariablesStatisticsView →
- Average salary, kept privateMediumBrainteasersStatisticsView →
- Bayes: did it rain?MediumConditional Probability & ExpectationStatisticsView →
- Best linear blend of two estimatesMediumRandom VariablesStatisticsView →
- Correlation of two face-countsMediumProbabilityStatisticsView →
- Covariance from a triangular densityMediumRandom VariablesStatisticsView →
- Covariance of sum and differenceMediumRandom VariablesStatisticsView →
- Disease test (Bayes)MediumConditional Probability & ExpectationStatisticsView →
- E[X | X > 0] for a standard normalMediumStatisticsCalculusView →
- Fair outcome from a biased coinMediumProbabilityStatisticsView →
- Maximum variance on an intervalMediumRandom VariablesStatisticsView →
- Median of a list and its squaresMediumCombinatoricsStatisticsView →
- Minimum-variance weightsMediumStatisticsFinance & DerivativesView →
- OLS slope from four pointsMediumStatisticsView →
- Order statistics of two uniformsMediumRandom VariablesStatisticsView →
- Sharpe ratio in a marble gameMediumExpected ValueStatisticsView →
- Spectrum of a symmetric matrixMediumStatisticsLinear AlgebraView →
- Sum and difference of perfectly correlated variablesMediumRandom VariablesStatisticsView →
- Swapping the regression variablesMediumStatisticsView →
- The German tank problemMediumExpected ValueStatisticsView →
- Uncorrelated but dependentMediumRandom VariablesStatisticsView →
- Variance of a coin-gated payoffMediumRandom VariablesStatisticsView →
- Variance of hearts in eight cardsMediumCombinatoricsStatisticsView →
- Variance of the larger of two diceMediumRandom VariablesStatisticsView →
- Waiting to see both facesMediumRandom VariablesStatisticsView →
- Why divide by n−1?MediumStatisticsView →
- Width of a market under uncertaintyMediumMarket Making & Betting GamesStatisticsView →
- A CLT tail probabilityMediumStatistics Premium
- Back out the market premium, then price a stockMediumStatisticsFinance & Derivatives Premium
- Backing out a correlationMediumRandom VariablesStatistics Premium
- Confidence interval with the right pivotMediumStatistics Premium
- Correlation of overlapping sumsMediumRandom VariablesStatistics Premium
- Diversified VaR of two positionsMediumStatisticsFinance & Derivatives Premium
- Empirical rule between two scoresMediumStatistics Premium
- Fourth moment of a shifted normalMediumProbabilityRandom Variables Premium
- Gap between two uniformsMediumExpected ValueStatistics Premium
- How many trials to poll a proportionMediumRandom VariablesStatistics Premium
- Law of total varianceMediumConditional Probability & ExpectationExpected Value Premium
- MLE at a boundaryMediumStatisticsCalculus Premium
- Markov with a floorMediumStatistics Premium
- Minimum-variance portfolio weightMediumStatisticsFinance & Derivatives Premium
- Optimally pooling two estimatorsMediumRandom VariablesStatistics Premium
- Positive semidefinitenessMediumStatisticsLinear Algebra Premium
- Reading an R²MediumStatistics Premium
- Regression to the meanMediumBrainteasersStatistics Premium
- Screening a rare diseaseMediumConditional Probability & ExpectationStatistics Premium
- Sizing an index-futures hedge in contractsMediumStatisticsFinance & Derivatives Premium
- Sum of squared standard normalsMediumRandom VariablesStatistics Premium
- The probability integral transformMediumRandom VariablesStatistics Premium
- Two-sided p-value of a mean testMediumStatistics Premium
- Variance explained by a regressionMediumStatisticsLinear Algebra Premium
- Variance of a squared normalMediumRandom VariablesStatistics Premium
- Variance of a two-regime returnMediumRandom VariablesStatistics Premium
- Variance of coins-per-die headsMediumRandom VariablesStatistics Premium
- Variance-minimizing hedgeMediumProbabilityStatistics Premium
- Volatility smile meaningMediumStatisticsFinance & Derivatives Premium
- What 'unbiased' meansMediumStatistics Premium
- What a p-value isMediumStatistics Premium
- When a biased estimator winsMediumRandom VariablesStatistics Premium
- Which desk books the larger dayMediumRandom VariablesStatistics Premium
- Which machine made the defect?MediumConditional Probability & ExpectationStatistics Premium
- Why covariance matrices are PSDMediumStatisticsLinear Algebra Premium
- k-th order statisticMediumExpected ValueStatistics Premium
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