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You are not logged in. #1 20130316 10:23:50
probability question help meYou are holding a party at home, and everyone is about to participate in the following game. #2 20130316 18:13:00
Re: probability question help meHi; Last edited by bobbym (20130316 18:28:22) In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #3 20130316 18:57:19
Re: probability question help meThis problem doesn't make sense.
Think of the "randomly distributed" deck of cards be a random permutation scramble of n objects, where n is the number of people you have in your group. If no one gets a card with his or her own name on it, then this is a derangement.
Okay, so this is telling me that only when there is a derangement will any names will be called out.
The phrasing of this is odd because by the quoted text above this one, no one's name will be called when there isn't a derangement. So when the first round occurs where at least someone has his or her own card, then no body's name will be called and therefore everyone will have to drink before midnight (is this question a joke or an encrypted message saying that everyone is going to a drink vodka before midnight at a party?). which pretty much guarantees that all people will have to drink before midnight. #4 20130316 19:30:38
Re: probability question help meHi; Last edited by bobbym (20130316 19:38:15) In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #6 20130317 18:41:17
Re: probability question help meHi; Last edited by bobbym (20130317 18:43:19) In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #8 20130318 20:01:08
Re: probability question help me
I am forced to disagree. If this problem came out of some real world application I would gladly bet my dough on the answer anywhere in town. But since it probably came from academia it is highly unlikely to be correct. They just do not have the imagination to create a problem that is as bizarre as one of my solutions. In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #10 20130319 22:35:54
Re: probability question help meI will show you what I did please hold on. In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #12 20130319 22:55:02
Re: probability question help meHi;
Plugging in k = 5 answers a. Last edited by bobbym (20130319 23:01:13) In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #14 20130319 23:25:14
Re: probability question help meThe programming allows me to play spot the pattern much more than without it. Basically without it the general form produced is very difficult if not impossible for all but the best of the best. Last edited by bobbym (20130319 23:30:39) In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #15 20130324 19:14:54
Re: probability question help meHi, would you be able to show me the working for b, for the general formula of expected number of drunk please? thank you very much . #16 20130324 19:17:51
Re: probability question help me
If possible, can you please write this in a simplier format? as I don't quite understand these notations. Thank you very much. #17 20130324 19:25:15
Re: probability question help meHi; Last edited by bobbym (20130324 19:33:02) In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #18 20130324 19:35:20
Re: probability question help meI think there's a gamma distribution in there? Unfortunately I haven't learned that yet. Would be okay if you rewrite the formula without the gamma distribution? thank you very much. #19 20130324 19:46:49
Re: probability question help meHi; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #20 20130324 19:55:58
Re: probability question help meHi, sorry for bothering again, but what is j in this case? #21 20130324 20:00:52
Re: probability question help meHi; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #23 20130324 20:22:59
Re: probability question help meThen please hold on, it will take awhile. Last edited by bobbym (20130324 20:35:07) In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #24 20130324 20:41:22
Re: probability question help meThat is quite okay, thank you. #25 20130324 20:42:28
Re: probability question help meand why did we have to time that by (k1)!? 