OA coding challenge. I had to solve one question in 90 mins. The question was medium level and took almost 70-80 mins to solve. Although the question looks lengthy but it is doable.
There were two interviews:
the first one is based on probabilities and statistics - different small questions that you have to answer in under one minute.
The second one is pre-recorded and gives you 5 mins to answer a stats/distributions question while being recorded.
Interview questions [1]
Question 1
Which type of graph is best used to describe time-series?