The recruiter reached out two weeks ago. There were two technical rounds, and one round was prob, stat, and coding. There was a queueing problem: 100 people line up randomly to get into a party, and numbers are called. Whoever's number is called goes to the front of the line, everyone else steps back one place, the called person goes in, and this repeats. What is the expected total number of steps back?
There was also another one, and I don't remember the details well. Roughly, there were two processes, and after some time one had received 100 and the other 120. The question was whether there is evidence that the 120 one is actually better than the 100 one. It should be something like a Poisson process, plus hypothesis testing. There was also a simple Bayes rule question, the kind everyone knows.
The case study was the California housing prices one that people post about on the forum.
I thought I did really well, but I still got rejected.
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