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Path: ...!weretis.net!feeder8.news.weretis.net!feeder1-2.proxad.net!proxad.net!feeder1-1.proxad.net!cleanfeed1-a.proxad.net!nnrp3-1.free.fr!not-for-mail Date: Tue, 30 Jan 2024 16:09:08 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: =?UTF-8?Q?Re=3A_Biaiser_les_probabilit=C3=A9s?= Content-Language: fr Newsgroups: fr.sci.maths References: <FC7uiNUCeXddcQcZGTqATTlb77E@jntp> <up5u5l$a2g$1@dont-email.me> <JLTQztzcWhQmabrBqcVhlX4lCTQ@jntp> <up618l$rdt$1@dont-email.me> <WIGYsx07m3DG6dcL2jvOfe3i1sA@jntp> <up6btb$1arg$1@cabale.usenet-fr.net> <Q6obnXg5HnO88LgOL2sxykZiUWc@jntp> <up8lej$2eah$1@cabale.usenet-fr.net> <cczhJyDQLcwXjXJ3eURJ7Eun36I@jntp> <up9841$2tba$1@cabale.usenet-fr.net> <frOm3MdS62za7-JTcGughujiCL8@jntp> <upahdf$ecm$1@cabale.usenet-fr.net> <upal63$fdm$1@cabale.usenet-fr.net> <65b90e95$0$11921$426a74cc@news.free.fr> From: Michel Talon <talon@niobe.lpthe.jussieu.fr> In-Reply-To: <65b90e95$0$11921$426a74cc@news.free.fr> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Lines: 14 Message-ID: <65b91114$0$11924$426a34cc@news.free.fr> Organization: Guest of ProXad - France NNTP-Posting-Date: 30 Jan 2024 16:09:09 CET NNTP-Posting-Host: 88.161.173.7 X-Trace: 1706627349 news-4.free.fr 11924 88.161.173.7:20072 X-Complaints-To: abuse@proxad.net Bytes: 1829 Le 30/01/2024 à 15:58, Michel Talon a écrit : > %o4) ((2*n-1)*(2*n-2)!)/((n-1)!^2*n) > > Ce qui vaut C(2n-1,n)/(n-1)! > et est assez éloigné des choses que tu dis. Tu as du oublier des > contributions. Désolé, c'est moi qui avait oublié le préfacteur (n!)²/(2n)! . En le rajoutant on trouve exactement 1/2. Donc ton calcul python est parfaitement juste, et la conclusion valable pour tout n. -- Michel Talon