Expected Value Questions for Hedge Fund Quant Interviews
A hedge fund quant round does not test expected value the way a textbook does. This set is the overlap - the expected value questions that actually turn up in this format.
32 questions, all free to practise. The split is 2 easy, 17 medium, 13 hard.
- Color switches in a drawEasyRandom VariablesExpected ValueView →
- Paid a dollar or the drawEasyExpected ValueStatisticsView →
- Aces in a seven-card handMediumCombinatoricsExpected ValueView →
- All six faces (coupon collector)MediumRandom VariablesExpected ValueView →
- Dice game, up to three rollsMediumExpected ValueStochastic ProcessesView →
- Distinct birthdays representedMediumProbabilityExpected ValueView →
- Expectation as a sum of tailsMediumRandom VariablesExpected ValueView →
- Expected absolute difference of two diceMediumExpected ValueView →
- Expected duration of a fair gameMediumExpected ValueStochastic ProcessesView →
- Expected flips for HHMediumRandom VariablesExpected ValueView →
- Expected rolls for two sixes in a rowMediumExpected ValueStochastic ProcessesView →
- Expected sum given both evenMediumConditional Probability & ExpectationExpected ValueView →
- Gap between two uniformsMediumExpected ValueStatisticsView →
- Is the random walk squared a martingale?MediumExpected ValueStochastic ProcessesView →
- Law of total varianceMediumConditional Probability & ExpectationExpected ValueView →
- Number of runsMediumExpected ValueView →
- Position of the first spadeMediumCombinatoricsExpected ValueView →
- Pricing a squared payoffMediumExpected ValueMarket Making & Betting GamesView →
- The German tank problemMediumExpected ValueStatisticsView →
- Bluffing frequency in pokerHardProbabilityExpected ValueView →
- Connecting noodlesHardProbabilityExpected ValueView →
- Dealing until kings or a king-and-aceHardCombinatoricsExpected ValueView →
- Deriving the first-price shading factorHardProbabilityExpected ValueView →
- Drunk man on a bridgeHardExpected ValueStochastic ProcessesView →
- Expected flips for HHHHardExpected ValueStochastic ProcessesView →
- Expected flips for HTHHardExpected ValueStochastic ProcessesView →
- Expected revisits of the start stateHardExpected ValueStochastic ProcessesView →
- Four heads in a rowHardExpected ValueStochastic ProcessesView →
- Guessing cards from a known pileHardProbabilityExpected ValueView →
- Reflecting wall first-passage timeHardExpected ValueStochastic ProcessesView →
- The all-pay auctionHardProbabilityExpected ValueView →
- World Series bettingHardExpected ValueStochastic ProcessesView →
Widen the search
This set is a slice of two larger ones. If it is too narrow, start here instead:
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