Easy Market Maker Interview Questions
The entry point into market maker preparation - enough to learn the shape of the round before the difficulty rises.
67 questions, all free to practise. The topics that come up most are probability (21), brainteasers (21), combinatorics (18), expected value (6).
- A coin that branches into a dieEasyCombinatoricsExpected ValueView →
- A divisor of a power of tenEasyProbabilityCombinatoricsView →
- A factorial ratio that's a factorialEasyBrainteasersView →
- A majority of onesEasyCombinatoricsView →
- A mixed second partial derivativeEasyCalculusView →
- A multiple of 15 in ones and zerosEasyBrainteasersView →
- A ratio of Fibonacci sumsEasyBrainteasersView →
- A root of a product plus oneEasyBrainteasersView →
- A specific sequence given three headsEasyProbabilityConditional Probability & ExpectationView →
- A sum of three cubesEasyBrainteasersView →
- Age in a square yearEasyBrainteasersView →
- All four aces before any kingEasyProbabilityCombinatoricsView →
- All the squares on a chessboardEasyCombinatoricsBrainteasersView →
- An alternating sum of squaresEasyBrainteasersView →
- An infinite nested radicalEasyBrainteasersView →
- An odd subset with two small elementsEasyCombinatoricsView →
- Arranging colored balls in a lineEasyCombinatoricsView →
- Beating a product of uniformsEasyProbabilityRandom VariablesView →
- Beating three othersEasyProbabilityRandom VariablesView →
- Chebyshev on a concrete intervalEasyStatisticsView →
- Clock angle at 3:15EasyBrainteasersView →
- Correlation of two event indicatorsEasyProbabilityStatisticsView →
- Counting 8-bit stringsEasyCombinatoricsView →
- Counting complement pairsEasyProgramming & DSAView →
- Counting nines to 1000EasyCombinatoricsBrainteasersView →
- Counting up-down walks to a targetEasyCombinatoricsView →
- Crossing the origin twiceEasyStochastic ProcessesView →
- Depth of a key in a BSTEasyProgramming & DSAView →
- Determinant from trace and one eigenvalueEasyLinear AlgebraView →
- Determinant of a scaled productEasyLinear AlgebraView →
- Diagonal parameter from a triangular determinantEasyLinear AlgebraView →
- Eigenvalues of a 2×2 matrixEasyLinear AlgebraView →
- Even heads with one fair coinEasyProbabilityConditional Probability & ExpectationView →
- Expected flips for two heads (not in a row)EasyProbabilityExpected ValueView →
- Guessing a number with high-low hintsEasyBrainteasersProgramming & DSAView →
- Handshakes at four couplesEasyCombinatoricsBrainteasersView →
- Integers that contain a zeroEasyCombinatoricsBrainteasersView →
- Keep it or draw againEasyProbabilityExpected ValueView →
- Largest eigenvalue after squaringEasyLinear AlgebraView →
- Lattice paths through a checkpointEasyCombinatoricsView →
- Matching a max and a min at zeroEasyProbabilityView →
- Matching locks to keysEasyBrainteasersView →
- Maximum subarray sumEasyProgramming & DSAView →
- More heads than tails in six flipsEasyProbabilityView →
- Peak depth times group count of a bracket scanEasyProgramming & DSAView →
- Polygons with integer anglesEasyBrainteasersView →
- Reflipping for valueEasyProbabilityExpected ValueView →
- Repeated digit on a plateEasyCombinatoricsView →
- Retries under a hard capEasyExpected ValueStochastic ProcessesView →
- Six heads from a random biased coinEasyConditional Probability & ExpectationRandom VariablesView →
- Solving a linear Diophantine equationEasyBrainteasersView →
- Summing n plus one over two to the nEasyCalculusView →
- Tangent-minus-sine third-order limitEasyCalculusView →
- The added babyEasyProbabilityConditional Probability & ExpectationView →
- The largest unmakeable postageEasyBrainteasersView →
- The price of a triangular gardenEasyBrainteasersView →
- The top two cards form a pairEasyProbabilityCombinatoricsView →
- The two missing numbersEasyProgramming & DSAView →
- Three children, all boysEasyProbabilityConditional Probability & ExpectationView →
- Three cube faces at a cornerEasyProbabilityCombinatoricsView →
- Two primes with an even sumEasyProbabilityCombinatoricsView →
- Unchanged after ten swingsEasyProbabilityBrainteasersView →
- Units digit of a random productEasyProbabilityCombinatoricsView →
- Weighting a fixed sumEasyConditional Probability & ExpectationExpected ValueView →
- When the clock hands next meetEasyBrainteasersView →
- Where the arrivals landEasyProbabilityStochastic ProcessesView →
- Whether either bus comes soonEasyProbabilityRandom VariablesView →
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