Optiver interview probabilities

Hello guys,

I am having an interview with optiver and I am looking for any book that could help me prepare for probability queStions involving cards. (There are also questions about variance).I heard that optiver uses them a lot. If anyone has any clue about the questions I would be really grateful. Thank you for your help !!

3 Comments
 

I heard something like what’s the expectation of drawing a card if I remove 7,8 and 5 from the deck. Or the variance of such an event . Excuse me but that’s not easy to compute when you are in front of recruiters with a 6 second limit ... I don’t know if it was your case

 

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