**Interviewed Apr 2011 in Cambridge, East of England, England(took 2 weeks)**

Interesting

**Interview Questions**

What is d x^x/dx?

**View Answers (2)**

Show that the variance of the sum of two independent random variables is the sum of the variances.

**Answer Question**

**Other Details**

The interview consisted of a **1:1 Interview**

**Interviewed May 2011 in Cambridge, East of England, England(took a day)**

It began with a written test, with a mix of questions; mainly maths/brainteaser type things. Some programming/logic type questions. This was then marked with me present, by the first interviewer. He was from the programming side, so asked me a lot of programming type questions. He came across as quite 'aloof' and not particularly friendly.
The second guy was a quant, and asked me loads of detailed statistics questions. As is clear from my CV, I do not have extensive stats knowledge (although I'd done my best to revise) but he started being quite aggressive over this - effectively telling me that I was wasting their time and could contribute nothing. I was shocked by this attitude, because I had assumed it was about 'How you think' rather than 'What you know'. I pointed out that I'd already demonstrated on my PhD how quickly I learn and produce results in a new field, but he wasn't interested.
I'd wasted money and significant amounts of preparation time to go to Cambridge and be insulted. If having a PhD in stats is important then they could have realised that by looking at my CV.

**Interview Questions**

Calculate d(x^x)/dx

**View Answers (1)**

What is 6 base -2?

**View Answers (3)**

Coin tossing game. If you get a heads on the first toss I pay you £1, and we stop playing. If you get a tails you toss again. If you get a heads on the second toss you get £2... etc, so that if you get your first head on the nth throw you win £2^n. What is the expected return? How much would you pay to play this game?

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Define standard deviation. Given two independent data sets that get summed together, derive the standard deviation of their sum.

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Write a function to calculate b^n, defined as
b^n = b^(n-1) * b if n>1
= b if n = 1

**View Answers (1)**

**Other Details**

The interview consisted of a **1:1 Interview**

**Interviewed Jan 2011 in Cambridge, East of England, England(took 3 days)**

Sequence of interviews one on one with most of the people at Cantab. First round started with a written test, then all one hour one on ones with junior/mid level staff until day 3, interviews with firm partners. Very broad range technically - integrals, probability, time series, puzzles, programming, drilling into CV. All were friendly and not aggressive in questioning style, really trying to get a good appraisal it seemed.

**Interview Questions**

Float the titanic with how many ping pong balls?

**Answer Question**

**Other Details**

The interview consisted of a **1:1 Interview** and an **IQ/Intelligence Test**

**Interviewed Aug 2009 in Cambridge, East of England, England(took a day)**

I was impressed by this company. Referral through a friend who works here. The interviewers were smart and asked interesting questions. They also got back promptly at all stages of the process. In the end it wasn't the right fit, but I was impressed with the way they considered my application and took time to give sensible and useful feedback.

**Interview Questions**

How would you set about designing an investment strategy from scratch?

**Answer Question**

**Other Details**

The interview consisted of a **1:1 Interview**