Conditional probability questions e.g. say there is a fair 4 sided die and a fair 6 sided die (numbers 1-4 and 1-6 respectively on the dice), then given a 2 is rolled, what is the probability that the die rolled was the 4 sided die if the die was picked at random?
probability of 2 H in 3 coin tosses
Interesting probability and game strategy questions
Easy prob / stat question
sum of odd numbers from 1 to n
What’s something you like about Jane street.
If there is a 0.4 chance it rains on saturday and a 0.6 chance it rains on sunday, what is the probability it rains both days?
Q: expected value of betting game, slight variant —> how much would you pay for option to do xyz?
Probability I row a strictly bigger dice than you.
You and an opponent are each given a number between 0 and 1 uniformly, and the higher number wins 1 point from the other. Having seen your number and not your opponents, you can choose offer double the odds or just continue to see their number. If you offer double, the opponent can, having seen their number either reject the offer (losing 1) or play double, potentially losing or winning 2 based on the numbers. How should you play?
Viewing 631 - 640 interview questions