OA contains prob/stats questions, often focusing on brain teasers, probability distributions, statistical inference, regression analysis, and linear algebra. You can practice based on the book .
Domande di colloquio [1]
Domanda 1
Suppose you roll two fair six-sided dice. What is the probability that the sum of the two dice is equal to 8? (like this)
Ho sostenuto un colloquio presso Citadel (Londra, Inghilterra)
Colloquio
Very good and helpful, enjoyed how they had a technical aspect as well. The interview was nice and very nice and kinda nice. Extremely nice broski, lowkenuinely a nice experience broskini.
First round discussing work experience and some hypothetical research questions and how I would approach the problems. Highly conversational and chatty. Interviewer was nice and friendly and offered his insight along the way.
It started with an automated coding screen in a language of your choice, which I unfortunately did not get past. I chose Python for the screen, the questions were pretty standard I just wasn't prepared.