Meta Data Science interview questions

Efficient, informative, and they gave me a fair chance to prepare. They told me what to expect and sent me suitable preparation material. I did review and practiced a few of the questions in Python.

First phone screen, pretty easy algorithmic problems (shuffle an array), complexity analysis on the response. Second phone interview: algorithmic problems again, a little more difficult than the first. Third interview: conversation with one of the datascientists about basic statistical modelling techniques