Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ ¹ ² ³ °
 

You are not logged in. #101 20130402 07:24:04
Re: rat run probabilityYou were going to do Bayes' theorem. The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #102 20130402 07:33:12
Re: rat run probabilityI remember that now but Agnishom has probably gone to sleep. 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. #103 20130402 13:27:15
Re: rat run probabilityWhat does the notation mean?'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.' 'God exists because Mathematics is consistent, and the devil exists because we cannot prove it' 'Who are you to judge everything?' Alokananda #104 20130402 13:57:25
Re: rat run probabilityP(AB) is the probability that A has happened if we know that B has happened. The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #105 20130402 14:11:45
Re: rat run probabilityGot it from the wiki, 'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.' 'God exists because Mathematics is consistent, and the devil exists because we cannot prove it' 'Who are you to judge everything?' Alokananda #106 20130402 14:27:57
Re: rat run probabilityHi Agnishom; 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. #107 20130402 17:12:42
Re: rat run probability
Are you talking about c? 'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.' 'God exists because Mathematics is consistent, and the devil exists because we cannot prove it' 'Who are you to judge everything?' Alokananda #108 20130402 19:53:25
Re: rat run probabilityHi;
It is very important in mathematics to get an answer by using more than one method. I often see people putting answers down from a single method sure that they are right. It is much more certain that you have the correct answer when it has come from several different ideas or methods. We got 1 / 2 by a Markov chain, a simulation and reasoning. I am now very sure of that answer. 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. #109 20130402 19:58:31
Re: rat run probabilityOh yeah! 'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.' 'God exists because Mathematics is consistent, and the devil exists because we cannot prove it' 'Who are you to judge everything?' Alokananda #110 20130402 21:29:59
Re: rat run probabilityHi Agnishom The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #111 20130403 01:07:34
Re: rat run probabilityHi; 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. #112 20130403 03:33:22
Re: rat run probabilityHi stefy; 'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.' 'God exists because Mathematics is consistent, and the devil exists because we cannot prove it' 'Who are you to judge everything?' Alokananda #113 20130403 07:19:43
Re: rat run probabilityHi bobbym The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #114 20130403 07:21:39
Re: rat run probabilityHi; 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. #115 20130403 07:25:34
Re: rat run probabilityMoreover, according to the problem, in a room with multiple exits, every exit has the same probability of being exited through 'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.' 'God exists because Mathematics is consistent, and the devil exists because we cannot prove it' 'Who are you to judge everything?' Alokananda #116 20130403 07:28:42
Re: rat run probabilityYes, since the prob of being in any room is the same it is only natural that exits from 3 would equal exit from 1 and 2. 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. #117 20130403 07:36:34
Re: rat run probabilityThe simulation does approve of the equality, but I am not very convinced by the reasoning. The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #118 20130403 07:41:49
Re: rat run probabilityYes, but there must be something to it or else it is an amazing coincidence. Physicists believe in random events and coincidence, I do not. 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. #119 20130403 07:50:33
Re: rat run probabilityIt does. I am not saying the reasoning is wrong, though. It is probably legit. The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #120 20130403 07:55:44
Re: rat run probabilityThat is odd, it is why I stay away from combinatoric reasoning. Some say, because I stink at it. They are partially right. I think it can be misleading sometimes and confusing the rest of the time. I prefer computation. Numbers do not lie unless they are describing the US economy. 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. #121 20130405 04:37:23
Re: rat run probabilityI'm getting 7 / 16 for (ii) "Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense"  Buddha? "Data! Data! Data!" he cried impatiently. "I can't make bricks without clay." #122 20130405 04:47:14
Re: rat run probabilityWe stopped at i) I think I was getting tired. 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. #123 20130405 04:54:18
Re: rat run probabilityOkay, verify when you are done. "Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense"  Buddha? "Data! Data! Data!" he cried impatiently. "I can't make bricks without clay." #124 20130405 04:55:59
Re: rat run probabilityHi gAr; 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. #125 20130405 05:00:25
Re: rat run probabilityHi, Last edited by gAr (20130405 05:14:46) "Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense"  Buddha? "Data! Data! Data!" he cried impatiently. "I can't make bricks without clay." 