Quantitative Trading Interview Questions

447 quantitative trading interview questions shared by candidates

actions in a game. The die starts with upface 1. The two options you can perform are to roll and to take. Performing a roll re-rolls the current upface of the die. Performing a take allows you to cash out the current upface of the die. Note that the game does not end when you perform a take and that you do not have to roll between takes. Therefore, for example, you can just perform 100 takes on the initial $1 upface and walk away with $100 guaranteed. Your strategy is to cash out the upface when you roll at least some threshold n for the first time. You fix this n at the beginning of the game. Assuming rational strategy in selecting n, what is your expected payout on this game?
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Quantitative Trading Intern

Interviewed at Jane Street

4.4
Oct 30, 2024

actions in a game. The die starts with upface 1. The two options you can perform are to roll and to take. Performing a roll re-rolls the current upface of the die. Performing a take allows you to cash out the current upface of the die. Note that the game does not end when you perform a take and that you do not have to roll between takes. Therefore, for example, you can just perform 100 takes on the initial $1 upface and walk away with $100 guaranteed. Your strategy is to cash out the upface when you roll at least some threshold n for the first time. You fix this n at the beginning of the game. Assuming rational strategy in selecting n, what is your expected payout on this game?

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