# Jérémie

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bio website www-apr.lip6.fr/~lumbroso location age member for 2 years, 10 months seen Feb 23 at 7:30 profile views 24

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 Aug7 comment Coupon collectors problems with multiple coupons in a cereal box As per Ross Millikan, there are not enough details in the question. Furthermore, I don't understand how the parameter $m$ affects the problem, since it will not factor in the solution to your problem. Aug6 awarded Citizen Patrol Aug6 comment Algorithm for intersection between polyline and rectangle? I imagine if the array is sorted then it might be possible to do something that is logarithmic. A more natural place to ask this question is the CS.SE. Aug6 comment The expected payoff of a dice game You beat me to it. Very good answer, because it allows for an easy generalization to $k$ dice rolls. Aug6 suggested suggested edit on Probability that the sum of randomly selected integers from a (random) set S is odd even? Aug6 awarded Organizer Aug6 revised Probability that the sum of randomly selected integers from a (random) set S is odd even? rephrased, retitled and added tags Aug6 suggested suggested edit on Probability that the sum of randomly selected integers from a (random) set S is odd even? Aug5 revised Probability that the sum of randomly selected integers from a (random) set S is odd even? completed answer with illustration Aug5 revised Probability that the sum of randomly selected integers from a (random) set S is odd even? completed answer with illustration Aug5 awarded Critic Aug5 answered Probability that the sum of randomly selected integers from a (random) set S is odd even? Jul6 awarded Teacher Jul5 comment Is it unlikely to get the same number of heads/tails? @did: I said "discovered among others", so I think my formulation was correct---especially considering Wästlund mentions Keane and O'Brien in the very first page as being the prior publishers. I happen to prefer the former's presentation. Was it really necessary for you to correct me so tersely? Jul5 answered Is it unlikely to get the same number of heads/tails? Jul5 comment Is it unlikely to get the same number of heads/tails? Good answer. Incidentally it is worth noting the connections: this is the probability that a random walk is a bridge (that is it begins and ends on the x-axis), and furthermore it is interesting to note that this fact is used to have an entirely discrete and exact simulation of a coin of bias $\sqrt{p}$ given a coin of bias $p$, discovered among others by Johan Wästlund and systematized in a recent wonderful paper by Flajolet et al.. May8 comment Expected time to roll all 1 through 6 on a die Follow-up question, Didier: what's the distribution? :) Jul10 awarded Supporter Jul10 awarded Editor Jul10 revised Closed-form Expression for $\sum_{j=0}^{k-1}(2j+2)\sum_{i=1}^j \frac 1 {i^2}$? (problem with Mathematica) Added my solution and further discussion based on comments.