First interview: 45 minutes, about 5 questions in increasing difficulty (first question VERY easy, last question a little trickier).. Second interview: 20 minutes, 2 questions. At the end of each question in the second interview, they asked me "the probability my answer was right." I was irked by their odd choice of words, but if you're confused like I was, that just means how confident you were in your answer. Don't say 1 unless you're really sure because then they'll ask you if you'd bet a billion dollars for the return of 1 dollar, in which case you look like a fool unless you're extremely confident.

I had a phone screening call from a recruiter, they asked some standard probability questions, bayes rule, and expected value about dices. Overall experience was pretty good. Make sure you prepare your probability