Example probability brain teasers: probabilities when rolling two dice twice with the second roll depending on the outcome of the first, the German tank problem, breaking a 4-digit code with different prior information etc. In total: know your combinatorics and Bayes rule in-and-out! Example business cases: - You own a museum and consider putting up an exhibition by a new artist. How would you go about the decision? What kind of information / data would you look for, how would you use it? - You want to buy a TV on amazon.com. How do you make a decision? - You performed A/B testing on a change in a search engine algorithm. Although in B, the coders made a mistake which led to really poor search results, user clicked on more results as well as on more ads. How do you interpret the results, what do you do next? etc. In total, they look for how you think and approach a problem. They often want to know how you deal with incomplete information, short timelines, trade-offs. Overall, all interviewers were very friendly and professional. My HR contact was very responsive throughout the whole process. My interview process was unusually long because of visa questions - normally they are faster than 3 months;-)
