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

You are not logged in. #1 20121231 00:20:57
Need help with a 'probability' problemHello everyone #2 20121231 00:34:35
Re: Need help with a 'probability' problemHi Roosh; 2) Or by using the hypergeometric distribution. 3) You could estimate the answer using a normal distribution. 4) You could use a binomial distribution to estimate it. Which is quite close to the exact answer. 5) Computer simulation. Ran a simulation of 1000000 and got 142413 cases of 3 out of 5. For .1424 which is also close to the exact answer. Bet the next question is a range say from 1 to 3 picked or something like that. 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 20121231 02:16:24
Re: Need help with a 'probability' problemHello Bobbym, #4 20121231 02:18:42
Re: Need help with a 'probability' problemHi;
At most two, just means 0,1 or 2. We can handle each case one at a time to get the exact answer. The heart of any combinatorics calculation is getting the same answer by a totally different method. Only then can you have faith in the answer. I ran off a simulation of 1000000 trials and got .82355 which is very close to the exact 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. #6 20121231 02:35:27
Re: Need help with a 'probability' problemHi;
My mother thought I was, I sure showed her! 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. #7 20121231 02:45:58
Re: Need help with a 'probability' problemMoral of the story, never question what mothers think , because they just know! she definitely is right #8 20121231 02:48:43
Re: Need help with a 'probability' problemIt looks like a Poisson distribution problem. 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 20121231 03:06:52
Re: Need help with a 'probability' problemMe too! But I never had much luck wishing for things. 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. #11 20130108 03:18:13
Re: Need help with a 'probability' problemHi, #12 20130108 03:20:53
Re: Need help with a 'probability' problemHi Doubtful;
Child with malnutrition, 310 / 3000. Any particular child 1 / 3000. 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. #13 20130109 01:52:58
Re: Need help with a 'probability' problemYes i understand any one child is 1/3000 #14 20130109 03:05:39
Re: Need help with a 'probability' problemHi; 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 20130109 03:28:48
Re: Need help with a 'probability' problemNo problem at all... I appreciate your quick response. #16 20130109 03:36:19
Re: Need help with a 'probability' problemOne more doubt: #17 20130109 03:37:51
Re: Need help with a 'probability' problemHi; 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. #19 20130110 03:55:09
Re: Need help with a 'probability' problemHi; 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 20130115 03:09:33
Re: Need help with a 'probability' problemThanks lot for your reply. #21 20130115 05:12:50
Re: Need help with a 'probability' problemHi Doubtful; 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. 