Citadel Securities Interview Question
Number of cards until first ace
Interview Answer
Anonymous
Jun 7, 2025
4 aces and 48 regular cards --> X~NegHypergeometric(52,4,1) so E[X] = (52+1)/(4+1) = 10.6 cards until the first ace.
Number of cards until first ace
Anonymous
4 aces and 48 regular cards --> X~NegHypergeometric(52,4,1) so E[X] = (52+1)/(4+1) = 10.6 cards until the first ace.
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