EV of a coin which when flipped gives you 10 if heads and -5 if tails
Junior Quantitative Analyst Data Analyst Interview Questions
6,194 junior quantitative analyst data analyst interview questions shared by candidates
What do you understand by market-making?
what does Flow Traders do? / How do they earn money?
Had to sign NDA. cannot discuss specifics.
Explain the differences between different models, details of projects in the past experience, how to calculate moving average in coding languages, some SQL questions.
Nothing strange was asked, familiarization with their work may help
Brainteasers that are somewhat open ended and not well structured. For example, mixing statistics with game theory. Very basic example: you throw a coin 5 times, and all 5 times you get heads. What is the chance you will get a head on the next throw. Ordinarily, it will be 50%. However, at that point you have to question the coin being fake or the game being rigged. Basic statistical questions like review ordinary linear squares, outline the solution, etc. Maybe prove some properties of the solution. Statistical questions from ESL (elements of statistical learning). Programming questions from a typical algorithm book. Open-ended questions such as build a model for problem X. Example: how do you build a model to bet on sports games, for example, hockey or baseball. Some math / programming contest type questions. Consult AoPS.
The first part contained three coding questions: 1. Check if a number is power of three. 2. Find a tipping point: The goal was to first find a "balance point" in an array (an index where the left and the right halves of the array have the same sum, index itself not included in the sums) and then find a "tipping point" (an index in the array which will "unbalance" it). This is not defined for arrays with e.g. zeros only. 3. Check if a linked list is contained in a tree. The second part was a probability simulation using monte-carlo/sampling.
Tell me about yourself. Talk about past experiences
Kelly criterion for fractional betting amounts
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