Conditional Probability & Expectation Interview Questions for Quant Researchers
Quant Researchers get asked conditional probability & expectation differently from other quant roles - the emphasis shifts with what the job actually does. This is that slice.
43 questions, all free to practise. The split is 10 easy, 26 medium, 7 hard.
- A die with one face decrementedEasyProbabilityConditional Probability & ExpectationView →
- A specific sequence given three headsEasyProbabilityConditional Probability & ExpectationView →
- Even heads with one fair coinEasyProbabilityConditional Probability & ExpectationView →
- Posterior from a likelihood ratioEasyConditional Probability & ExpectationStatisticsView →
- Rolling a die to size the next dieEasyConditional Probability & ExpectationExpected ValueView →
- Six heads from a random biased coinEasyConditional Probability & ExpectationRandom VariablesView →
- The added babyEasyProbabilityConditional Probability & ExpectationView →
- Three children, all boysEasyProbabilityConditional Probability & ExpectationView →
- Two heads given an even countEasyProbabilityConditional Probability & ExpectationView →
- Weighting a fixed sumEasyConditional Probability & ExpectationExpected ValueView →
- Bayes: did it rain?MediumConditional Probability & ExpectationStatisticsView →
- Bertrand's boxMediumProbabilityConditional Probability & ExpectationView →
- Coin sets the number of dice rollsMediumProbabilityConditional Probability & ExpectationView →
- Conditional mean on a circleMediumConditional Probability & ExpectationRandom VariablesView →
- Cosine of a conditional meanMediumProbabilityConditional Probability & ExpectationView →
- Disease test (Bayes)MediumConditional Probability & ExpectationStatisticsView →
- Expected sum given both evenMediumConditional Probability & ExpectationExpected ValueView →
- Fair value after an informed buyMediumConditional Probability & ExpectationMarket Making & Betting GamesView →
- Heads given the ends differMediumConditional Probability & ExpectationExpected ValueView →
- Law of total varianceMediumConditional Probability & ExpectationExpected ValueView →
- Memoryless waitingMediumConditional Probability & ExpectationRandom VariablesView →
- Minimum given the maximumMediumProbabilityConditional Probability & ExpectationView →
- Monty HallMediumProbabilityConditional Probability & ExpectationView →
- Monty Hall with 100 doorsMediumProbabilityConditional Probability & ExpectationView →
- Position of the first aceMediumConditional Probability & ExpectationExpected ValueView →
- Russian roulette, re-spunMediumProbabilityConditional Probability & ExpectationView →
- Screening a rare diseaseMediumConditional Probability & ExpectationStatisticsView →
- Spam filterMediumProbabilityConditional Probability & ExpectationView →
- The cab problemMediumProbabilityConditional Probability & ExpectationView →
- The two-headed coinMediumProbabilityConditional Probability & ExpectationView →
- Three prisonersMediumProbabilityConditional Probability & ExpectationView →
- Two childrenMediumProbabilityConditional Probability & ExpectationView →
- Two positive testsMediumProbabilityConditional Probability & ExpectationView →
- Which coin produced two heads?MediumProbabilityConditional Probability & ExpectationView →
- Which machine made the defect?MediumConditional Probability & ExpectationStatisticsView →
- Winning from deuceMediumProbabilityConditional Probability & ExpectationView →
- A second red ball from the same urnHardProbabilityConditional Probability & ExpectationView →
- Covariance with a lognormal childHardConditional Probability & ExpectationRandom VariablesView →
- Laplace's rule of successionHardProbabilityConditional Probability & ExpectationView →
- Rolls to a six, given all evenHardConditional Probability & ExpectationExpected ValueView →
- The boy born on a TuesdayHardProbabilityConditional Probability & ExpectationView →
- The drunk passengerHardProbabilityConditional Probability & ExpectationView →
- The two-envelopes paradoxHardProbabilityConditional Probability & ExpectationView →
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This set is a slice of two larger ones. If it is too narrow, start here instead:
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