Medium Expected Value Interview Questions
Medium is where most real interview questions sit. This is the expected value set worth spending the most time in.
66 questions, 35 of them free to practise right now.
- All six faces (coupon collector)MediumRandom VariablesExpected ValueView →
- An ant returning to its cornerMediumExpected ValueStochastic ProcessesView →
- Balancing six- and eight-sided diceMediumExpected ValueBrainteasersView →
- Boy–girl neighbors in a lineMediumCombinatoricsExpected ValueView →
- Cash out or bustMediumProbabilityExpected ValueView →
- Dice game, up to three rollsMediumExpected ValueStochastic ProcessesView →
- Dice payoff via WaldMediumExpected ValueStochastic ProcessesView →
- Distinct faces in three rollsMediumExpected ValueView →
- Expectation as a sum of tailsMediumRandom VariablesExpected ValueView →
- Expected fives before the first sixMediumProbabilityExpected ValueView →
- Expected flips for HHMediumRandom VariablesExpected ValueView →
- Expected flips for HHTMediumExpected ValueStochastic ProcessesView →
- Expected flips for HTMediumExpected ValueStochastic ProcessesView →
- Expected gap on 30-sided diceMediumProbabilityExpected ValueView →
- Expected maximum of two diceMediumRandom VariablesExpected ValueView →
- Expected median of three diceMediumProbabilityExpected ValueView →
- Expected value of the highest cardMediumProbabilityExpected ValueView →
- First consecutive repeatMediumProbabilityExpected ValueView →
- First to three of a kind in a rowMediumProbabilityExpected ValueView →
- Heads given the ends differMediumConditional Probability & ExpectationExpected ValueView →
- Letters into envelopesMediumProbabilityExpected ValueView →
- Locking a profit by hedging after the odds moveMediumExpected ValueMarket Making & Betting GamesView →
- Number of runsMediumExpected ValueView →
- Pay to play with a capMediumExpected ValueMarket Making & Betting GamesView →
- Position of the first aceMediumConditional Probability & ExpectationExpected ValueView →
- Pricing the higher of two diceMediumExpected ValueMarket Making & Betting GamesView →
- Ratio of partial sumsMediumRandom VariablesExpected ValueView →
- Red faces on a diced cubeMediumCombinatoricsExpected ValueView →
- Rolling a 5-sided die to reach fiveMediumProbabilityExpected ValueView →
- Rolling until two rolls differ by twoMediumProbabilityExpected ValueView →
- Rolls to a six before a fiveMediumProbabilityExpected ValueView →
- Sharpe ratio in a marble gameMediumExpected ValueStatisticsView →
- The German tank problemMediumExpected ValueStatisticsView →
- The last lightbulb to burn outMediumRandom VariablesExpected ValueView →
- Three rolls, keep the lastMediumExpected ValueView →
- A convexity gap by JensenMediumRandom VariablesExpected Value Premium
- Aces in a seven-card handMediumCombinatoricsExpected Value Premium
- Break-even half-spread from toxic flowMediumProbabilityExpected Value Premium
- Break-even half-spread under adverse selectionMediumExpected ValueMarket Making & Betting Games Premium
- Distinct birthdays representedMediumProbabilityExpected Value Premium
- Distinct faces in five rollsMediumCombinatoricsExpected Value Premium
- Empty boxesMediumExpected Value Premium
- Expectation of e raised to a normalMediumRandom VariablesExpected Value Premium
- Expected absolute difference of two diceMediumExpected Value Premium
- Expected ascents in a shuffleMediumCombinatoricsExpected Value Premium
- Expected duration of a fair gameMediumExpected ValueStochastic Processes Premium
- Expected maximum of three diceMediumRandom VariablesExpected Value Premium
- Expected minimum of two diceMediumRandom VariablesExpected Value Premium
- Expected revenue of a Vickrey auctionMediumProbabilityExpected Value Premium
- Expected rolls for two sixes in a rowMediumExpected ValueStochastic Processes Premium
- Expected sum given both evenMediumConditional Probability & ExpectationExpected Value Premium
- Expected sum of a random subsetMediumExpected Value Premium
- Fair price of a die with one re-rollMediumExpected ValueMarket Making & Betting Games Premium
- Gap between two uniformsMediumExpected ValueStatistics Premium
- Inversions in a shuffleMediumCombinatoricsExpected Value Premium
- Is the random walk squared a martingale?MediumExpected ValueStochastic Processes Premium
- Law of total varianceMediumConditional Probability & ExpectationExpected Value Premium
- Memoryless waitingMediumConditional Probability & ExpectationRandom Variables Premium
- Minimum defense frequency against a betMediumProbabilityExpected Value Premium
- Position of the first spadeMediumCombinatoricsExpected Value Premium
- Pricing a squared payoffMediumExpected ValueMarket Making & Betting Games Premium
- Renewal-reward fraction of time runningMediumExpected ValueStochastic Processes Premium
- Rolls to see both a 1 and a 2MediumExpected Value Premium
- Rolls until a face repeatsMediumProbabilityExpected Value Premium
- The St. Petersburg paradoxMediumExpected ValueMarket Making & Betting Games Premium
- k-th order statisticMediumExpected ValueStatistics Premium
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