Random Variables Questions for Numerical Reasoning Tests Interviews
A numerical reasoning tests round does not test random variables the way a textbook does. This set is the overlap - the random variables questions that actually turn up in this format.
31 questions, 23 of them free to practise right now. The split is 17 easy, 11 medium, 3 hard.
- A one-sided percentile cutoffEasyRandom VariablesStatisticsView →
- A tail of a sum of normalsEasyRandom VariablesStatisticsView →
- Beating a product of uniformsEasyProbabilityRandom VariablesView →
- Coin count past two sigmaEasyRandom VariablesStatisticsView →
- Conditioning a uniform waitEasyProbabilityRandom VariablesView →
- Correlation from a summed varianceEasyRandom VariablesStatisticsView →
- Expected distance of a dart from centerEasyProbabilityRandom VariablesView →
- Normalizing a tilted densityEasyRandom VariablesCalculusView →
- Pairs who swap hatsEasyRandom VariablesExpected ValueView →
- Spread of a coin-flip payoffEasyRandom VariablesStatisticsView →
- Squared payout on even facesEasyRandom VariablesExpected ValueView →
- Variance of a reciprocal uniformEasyRandom VariablesStatisticsView →
- Variance of a union indicatorEasyRandom VariablesStatisticsView →
- Variance of a weighted dice combinationEasyRandom VariablesStatisticsView →
- Variance of an asymmetric random walkEasyRandom VariablesStochastic ProcessesView →
- Where the maximum landsEasyRandom VariablesStatisticsView →
- Whether either bus comes soonEasyProbabilityRandom VariablesView →
- Expected maximum of two diceMediumRandom VariablesExpected ValueView →
- First head strictly soonerMediumProbabilityRandom VariablesView →
- Variance of a coin-gated payoffMediumRandom VariablesStatisticsView →
- A small sub-triangleHardProbabilityRandom VariablesView →
- Shortest of three piecesHardProbabilityRandom VariablesView →
- Six pieces, none past a halfHardProbabilityRandom VariablesView →
- A convexity gap by JensenMediumRandom VariablesExpected Value Premium
- Correlation of overlapping sumsMediumRandom VariablesStatistics Premium
- Expected maximum of three diceMediumRandom VariablesExpected Value Premium
- Neither die exceeds fourMediumProbabilityRandom Variables Premium
- Poisson thinning: exactly two large ordersMediumRandom Variables Premium
- Rare-event Poisson approximationMediumProbabilityRandom Variables Premium
- Variance of an aggregate Poisson totalMediumRandom VariablesStochastic Processes Premium
- Which desk books the larger dayMediumRandom VariablesStatistics Premium
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