Quantitative Analyst Summer Intern Interview Questions

236 quantitative analyst summer intern interview questions shared by candidates

3) Poker. 26 red, 26 black. Take one every time, you can choose to guess whether it’s red. You have only one chance. If you are right, you get 1 dollar. What’s the strategy? And what’s the expected earn?
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Quantitative Researcher Summer Intern

Interviewed at Jane Street

4.4
Apr 18, 2011

3) Poker. 26 red, 26 black. Take one every time, you can choose to guess whether it’s red. You have only one chance. If you are right, you get 1 dollar. What’s the strategy? And what’s the expected earn?

Suppose that you have a fair coin. You start with $0. You win 1$ each time you get a head and loose $1 each time you get tails. Calculate the probability of getting $2 without getting below $0 at any time.
Apr 11, 2012

Suppose that you have a fair coin. You start with $0. You win 1$ each time you get a head and loose $1 each time you get tails. Calculate the probability of getting $2 without getting below $0 at any time.

2) A. 10 ropes, each one has one red end and one blue end. Each time, take out a red and a blue end, make them together. Repeat 10 times. The expectation of the number of loops. B. 10 ropes, no color. All the other remains the same.
avatar

Quantitative Researcher Summer Intern

Interviewed at Jane Street

4.4
Apr 18, 2011

2) A. 10 ropes, each one has one red end and one blue end. Each time, take out a red and a blue end, make them together. Repeat 10 times. The expectation of the number of loops. B. 10 ropes, no color. All the other remains the same.

You're throwing a party in 24 hours and have purchased 1,000 bottles of wine. You are informed that one of these 1,000 bottles is tainted with a slow-acting poison that will kill the consumer 24 hours after intake. You have 10 rats that you can use to taste the wine. How many bottles will you be able to ensure are not poisoned by the time the party begins?
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Summer Quantitative Trading Internship

Interviewed at Old Mission

4.2
Dec 2, 2013

You're throwing a party in 24 hours and have purchased 1,000 bottles of wine. You are informed that one of these 1,000 bottles is tainted with a slow-acting poison that will kill the consumer 24 hours after intake. You have 10 rats that you can use to taste the wine. How many bottles will you be able to ensure are not poisoned by the time the party begins?

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