# Set Theory, Logic, Probability, Statistics

- Fundamentals: Set theory, logic and proofs. Probability and statistics
 Meta Thread / Thread Starter Last Post Replies Views Views: 500 Announcement: Follow us on social media and spread the word about PF! Jan16-12 Please post any and all homework or other textbook-style problems in one of the Homework & Coursework Questions... Feb23-13 09:25 AM micromass 1 32,444 I have an application where I need to pick a probability distribution (x_{1},\ldots,x_{n}) at random and uniformly... T 01:09 AM haruspex 1 61 I'm reading about the exponential family of distributions. In my book, I have the expression f(x|\theta) =... Y 11:09 AM Greg Bernhardt 1 133 I am attempting to calculate the even distribution of units sale across a predefined range with a final average value... Y 10:16 AM Aston08 1 86 I have a function $$F$$ I am trying to find the error correlation between the function at one point and another.... Y 07:03 AM Hepth 7 188 Hi all, I was going over the poll http://www.physicsforums.com/showthread.php?t=766275, and I was wondering how one... Y 02:13 AM WWGD 0 91 Are the Real numbers R a subset of the complex numbers C? Aug20-14 07:37 PM jostpuur 29 830 Forgive my ignorance; I'm a programmer and relatively math-minded, but I haven't taken statistics since high school. ... Aug19-14 02:23 AM Sheppie 8 384 I have been out of unversity statistics and biometry for a few years do date. I am working in a clical research... Aug16-14 09:11 AM Stephen Tashi 1 156 does anyone know sample codes with explanation on computing Geographically Weighted Regression using MATLAB?I am a... Aug15-14 07:14 PM Greg Bernhardt 1 234 I am trying to delete this thread but I am not sure how to - sorry Aug13-14 09:59 PM jedishrfu 4 178 Hi all, I Dont understand a principle from beardon, Algebra and Geometery chapter 2 real numbers... Please... Aug13-14 12:04 PM statdad 12 258 I have a group of dogs (3 brown male, 2 brown female, 4 white male, 4 white female, 5 black male, 4 black female)... Aug13-14 07:07 AM haruspex 5 163 "In multivariate probability distribution higher-order cumulants contain information of decreasing significance,... Aug11-14 10:52 AM statdad 4 278 Hi all, Firstly, hope I'm posting in the right place! I'm working with a company that works with air filters.... Aug10-14 01:16 AM haruspex 3 239 Consider two independent random events A and B. Is the event A/B independent from event B? My real problem stems... Aug10-14 01:02 AM haruspex 20 2,049 Hi there, I have a bit of a confusing question, but I'll try to be as clear as I can in asking it. I have a set... Aug10-14 12:56 AM haruspex 7 1,997 If you take two arbitrary numbers from a set N - lets say N stands for the natural numbers - and add them together,... Aug9-14 10:53 AM HallsofIvy 23 527 Mathematicians have long held that infinite integers do NOT exist, but here is a very simple argument that shows that... Aug8-14 02:45 PM phinds 13 423 Dear All, I am a starter to machine learning and i am currently confused about the following problem: what is... Aug8-14 09:26 AM Stephen Tashi 10 299 Just refreshing my understanding of measurable cardinals, the first step (more questions may follow, but one step at a... Aug3-14 04:17 PM mathman 2 258 I have some data from gas emission samples, part of the data was sampled in a region with a characteristic A and... Aug3-14 12:40 PM FactChecker 25 618 Hello! :-) I' have a problem... I fitted experimental data with a second order exponential theoretical curve: ... Aug2-14 03:27 PM mfb 7 229 Boolean Algebra is a well known field of study in mathematical logic. In Boolean Algebra (BA), a statement can be... Aug2-14 01:10 PM adrianmitrea 21 957 So, I'm having a pretty lazy day and decided to do some thinking. And, while this usually turns out to be a splendid... Aug2-14 11:50 AM Hornbein 13 319 I have a list of scores between 0 and 1 generated by an information retrieval system - 1 being very relevant and 0... Aug2-14 02:56 AM Stephen Tashi 4 205 I have around 550 asymmetrical sigmoid curves fitted to a function with 4 varying coefficients. Each of these curves... Jul31-14 03:55 PM Stephen Tashi 3 215 According to wiki: http://en.wikipedia.org/wiki/Poisson_process The probability for the waiting time to observe... Jul29-14 03:54 PM mathman 1 239 I really like the derivations here http://en.wikipedia.org/wiki/Proofs_involving_ordinary_least_squares Could... Jul29-14 02:10 PM Greg Bernhardt 1 443 Let's say I'm applying electrical currents to a certain part of a human test subject and measuring certain deflections... Jul29-14 02:10 PM Greg Bernhardt 1 524 Is infinity part of any set? Jul29-14 02:07 PM micromass 1 194 Is zero a real number? Jul29-14 01:55 PM johann1301 4 220 Imagine points in a plane with a uniform density. To use a simple model, consider just a finite region such as the... Jul28-14 09:55 PM marcusl 2 187 Hi everybody, I apologize if this question is too basic but I did 1 hour of solid Google searching and couldn't find... Jul28-14 04:07 PM gill1109 2 190 I have 3 fair dices. The probability of 2 of them lying in the same number without the 3rd doing so is given by... Jul28-14 09:38 AM gill1109 9 588 Prove Russel's paradox by contradiction and what does it tell us about sets? I tried doing it like this and I am not... Jul27-14 10:52 AM Stephen Tashi 5 900 From what I understand, and please correct me if I'm wrong: An "Argument" in sentential logic is a set of... Jul27-14 03:07 AM twoslit 7 3,140 I've been figuring out the use of the nonparametric bootstrap and if I understand correctly, this is the procedure: ... Jul25-14 10:31 AM Stephen Tashi 3 830 I thought I understood all the theory quite well and sat down to begin coding until I realized that calculating a... Jul25-14 08:36 AM TheOldHag 4 535 Suppose I have around 20 exposures that potentially affect an outcome and I want to see which exposures have bigger... Jul24-14 09:14 PM FactChecker 3 480 Three statements: 1) I will take a shower if the water is warm. 2) I will take a shower unless the water is cold.... Jul22-14 04:04 PM MrAnchovy 14 1,160