Data Researcher Interview Questions

14,877 data researcher interview questions shared by candidates

2. 2 players, called T and H, flip coin, the pot starts with 10 dollars, T wins the money in the pot if TT (tail tail) occurs while H wins the money in the pot if HH (head head) occurs. The game ends if the number of heads and the number of tails differ by more than 2 (inclusive, |#H-#T|>=2). Would you like to be play H and what is your strategy? What is you expected gain? If I offer you $20 and ask you to be player T and I will be player H, would you like to play? What about I give you $50, $100??
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Quantitative Researcher

Interviewed at Jane Street

4.4
Dec 21, 2016

2. 2 players, called T and H, flip coin, the pot starts with 10 dollars, T wins the money in the pot if TT (tail tail) occurs while H wins the money in the pot if HH (head head) occurs. The game ends if the number of heads and the number of tails differ by more than 2 (inclusive, |#H-#T|>=2). Would you like to be play H and what is your strategy? What is you expected gain? If I offer you $20 and ask you to be player T and I will be player H, would you like to play? What about I give you $50, $100??

There are 100 windows, 2 people and 50 days. One communicate other by breaking windows in any day. How many bits of information he can transfer? Second part: First one breaks windows, second one repairs some of them. They want to transfer as many bits as possible every day. Find out algorithm and most possible amount of bits. First one gets information by looking at windows which were repaired, second one - with broken windows.
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Researcher

Interviewed at Jane Street

4.4
Jan 7, 2020

There are 100 windows, 2 people and 50 days. One communicate other by breaking windows in any day. How many bits of information he can transfer? Second part: First one breaks windows, second one repairs some of them. They want to transfer as many bits as possible every day. Find out algorithm and most possible amount of bits. First one gets information by looking at windows which were repaired, second one - with broken windows.

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