interview questions shared by candidates
If you have three people standing, all facing the same direction, each person can see the color of the hat of only the person directly in front of them (which can be either black or white). There are two hats of each color (four total). The hats are placed on the persons' heads one at a time, starting with the one in the very front. When someone knows for certain what color hat they have, they need to declare that they have discovered the color of their hat. In this scenario, no matter which hats are distributed, at least one person can be certain of their hat color. What are these scenarios, and what are the probability distributions for each?
I was asked a great and interesting question that I will most likely use in my hiring process going forward that really demonstrates how one thinks and responds to a analytical problem. You have 9 balls and a balance, one ball is slightly heavier than the rest, with only 2 chances on the balance find that ball. The interviewer helps think through and everyone gets to the answer by the end but it really displays how someone works through a problem.