Pass the first coding round，after nearly one week which is really depends on the group got a message regarding the second round. It is about a data science home challenge, Give you one week to finish and get back to them.
As the technique round, the interviewee mainly asked two questions. Both of them are math questions. I am asked to derive the solution, and get the correct answer for it.
Interview questions [1]
Question 1
1. Starting from 0, random sample a number from 0-1, what is the expected number of samples to reach a sum over 2?
2. Given a group of data pair {x,y}, the mean and correlation at x>0,y>0 , x>0,y<0, x<0,y<0, x<0,y>0 are provided, find a way to check if the are linear correlated
Nice interviewer with profeesinoal questions about statistic and cs. His personality is also good and full of patience to wait for me for the enough thing time. Btw the pantry is good with lots of yogurt and fruits.
Two rounds and each of 1 hour. Resume discussion and mathematics which are not that easy level. Overall, it's relatively smooth. Also talked about some algo and factor research. Mainly trading related questions.