Research Data Interview Questions

83,712 research data interview questions shared by candidates

Interesting question: From a deck of 52 cards pick 26 at random. From this set of 26 you pick two cards. You win if the both of these cards are of the same color. Is this a game you would prefer over one in which you win by picking two (first two picks) of the same color at random from a deck of 26 with equal number of black and red cards
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Quantitative Researcher

Interviewed at Jane Street

4.4
Oct 24, 2014

Interesting question: From a deck of 52 cards pick 26 at random. From this set of 26 you pick two cards. You win if the both of these cards are of the same color. Is this a game you would prefer over one in which you win by picking two (first two picks) of the same color at random from a deck of 26 with equal number of black and red cards

You have 9 digits 1-9. Partition them into two sets S1 and S2. Make a number (any) using the digits of partition S1. Call this x. Similarly do it for S2. Call it y. the product p=xy. What should the numbers x and y be to maximize p.
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Research Analyst

Interviewed at WorldQuant

4.2
Mar 14, 2011

You have 9 digits 1-9. Partition them into two sets S1 and S2. Make a number (any) using the digits of partition S1. Call this x. Similarly do it for S2. Call it y. the product p=xy. What should the numbers x and y be to maximize p.

You throw 1000 darts. Each one has a 50% chance to score. For the first 500 darts each is worth 1 point, for the second 500 darts each is worth 3 points. If you score 1500 points. Most likely how many 3point darts have you scored.
avatar

Quantitative Researcher

Interviewed at Jane Street

4.4
Aug 9, 2013

You throw 1000 darts. Each one has a 50% chance to score. For the first 500 darts each is worth 1 point, for the second 500 darts each is worth 3 points. If you score 1500 points. Most likely how many 3point darts have you scored.

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