You are given three envelopes, one of which contains $100 and the others contain nothing. You randomly pick one envelope but don’t open it. The interviewer then opens one of the other two envelopes and shows that it’s empty. Now you have a choice: stick with your original envelope or switch to the other unopened envelope. What should you do to maximize your chances of winning, and why?
It was something like two players flip coins until one gets three heads. They take turns. Given that I go first and get heads, what is the probability that I win.
What is the probability of this and that given this and that.
Card games associated with expectation. Options introduced to hedge against risks.
What is the probability of getting an even number of heads when throwing a coin 9 times?
Can't specify but exactly the kind of binomial/similar stuff you'd expect, with combinatorics and mathematical intuition.
General probability and math questions.
The questions were actual game theory problems that one had to solve and along the way explain ones thinking and calculations over the phone.
Some unique probaility and statisctics question
A first round is a series of brainteasers/puzzles. Then the other interviews are longer, mmore difficult games that get increasingly more complicated as you make progress on them.
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