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Set Theory, Logic, Probability, Statistics

- Fundamentals: Set theory, logic and proofs. Probability and statistics
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Jan16-12 Greg Bernhardt
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

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