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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 31,956
"All engineers have practical skills or are good at mathematics" to write down the converse, inverse and...
Jul10-13 03:17 AM
micromass
3 651
Consider these propositions, P=It is raining, and Q=There are clouds in the sky R=giving a cookie by me, and...
Jul10-13 01:00 AM
Stephen Tashi
1 514
I have a question on (I think?) Bayesian statistics. Consider the following situation: -P is a class of...
Jul9-13 01:27 PM
economicsnerd
8 748
Hey all, so my university's game theory course never runs due to lack of students signing up for it, so I'm taking it...
Jul9-13 12:08 PM
economicsnerd
1 565
you can list and match up all rational numbers with irrational numbers this way.. lets say i have an irrational...
Jul9-13 03:34 AM
micromass
17 2,120
I read in Mirman's book on group theory that SO(2) is the only simple group that is not semisimple. Can anyone explain...
Jul7-13 11:23 PM
Stephen Tashi
1 464
Hi all. I've been thinking about this question a lot for the past few days and it seems to me that I'm committing a...
Jul7-13 08:24 PM
Stephen Tashi
24 1,720
I don't understand it. A has n elements, and B has m elements. Give the exact maximum/minimum of 1) A \bigcup B...
Jul7-13 08:19 AM
HallsofIvy
5 670
I have a one-dimensional set of data which I have attached an image of. This data is an intensity z, as a function of...
Jul6-13 06:59 AM
chiro
6 583
Need help propagating the uncertainty of Es = Ex (x+xo/xs+xo) . I understand all of the rules and can do it for a...
Jul5-13 08:53 PM
chiro
4 462
I am confused I understand that the power set has ##2^{|\mathcal{A}|}## members, but they write it as...
Jul5-13 06:08 AM
Tenshou
8 840
Does anyone know where to get the letters(English translation) between Cantor and Dedekind during the development of...
Jul4-13 02:20 PM
lugita15
2 567
Hello, I have some questions about the truth tables for impliocation and equivalence. for implication we have: p...
Jul3-13 04:49 PM
MLP
4 689
Hi Please advice me a good book on mathematical statistics.I want it to be oriented in math students or engineering...
Jul2-13 07:43 PM
theoristo
1 650
Hi guys, It's been 20 years since I left college so I have forgotten how to calculate probability. It is...
Jul2-13 11:42 AM
Logger
12 877
I have the following silly problem I don't know how to get round:cry: I have a set of datapoints, each point has...
Jul2-13 09:59 AM
f95toli
1 371
Hi, I'm having trouble understanding why the follow composition table for the set \left\{ a, b, c, d \right\} with...
Jul1-13 05:43 PM
coderot
5 503
I don't know if this is the proper thing to call it, but I haven't used any mathematical terminology in a while so I...
Jul1-13 04:07 AM
Tenshou
11 713
Just finished my math studies. I have been studying mostly statistics and have some experience in R language. Need...
Jun29-13 08:04 PM
MarneMath
1 579
I know that f(A∩B) is not equal to f(A) ∩ f(B) but i don't know that where am i wrong in the following proof....:( can...
Jun29-13 05:49 PM
woundedtiger4
2 497
So I've been banging my head on this problem for a few days and haven't gotten very far, hoping someone has some...
Jun29-13 11:07 AM
mfb
1 494
If one has the mean and standard deviation of a population, is it possible to calculate (or estimate) the mean and...
Jun28-13 05:40 PM
Stephen Tashi
3 675
Hello, I've been working on some questions from Rice's Mathematical Statistics and Data Analysis and I'm not sure...
Jun28-13 12:14 AM
Catchfire
2 566
This paper is still subject to being edited and I am an amatuer mathematician, so there may be some mistakes, typos,...
Jun27-13 10:10 PM
krausebj0
24 708
Is there a theorem which says that if certain natural number sequences exist, then some large cardinals exist. Can...
Jun27-13 09:19 PM
aleph-aleph
1 698
Thermodynamics states that a system cannot become more complex without some sort of input (which would make it an open...
Jun27-13 12:50 AM
acesuv
3 480
The question is this: "An urn is filled with 8 green balls, 2 red balls, and 6 orange balls. Three balls are...
Jun25-13 11:50 PM
Bacle2
3 834
Are both same or different? Can someone give me some example to understand? Thanks in advance
Jun25-13 11:46 AM
MarneMath
1 453
Hello everybody. For the past couple of months I've been trying to study abstract algebra by myself. I got some...
Jun25-13 07:31 AM
MarneMath
13 1,603
Now, assume I have a white noise, n(t)\tilde \ N(0,1), i.e gaussian with zero mean and variance 1, and it goes...
Jun22-13 03:18 AM
MathematicalPhysicist
0 560
derive the MGF hence find their mean and variance 1 weibull distribution 2 pareto distribution 3 lognormal...
Jun21-13 08:51 AM
HallsofIvy
1 716
Hi I am not sure what method to use when analysing the difference in values between physical measured data and...
Jun21-13 08:33 AM
nixi
2 680
My current level of understanding of error/data analysis and statistics is based on the material I covered from...
Jun20-13 11:09 PM
chiro
6 803
Good afternoon, I've come here to hopefully resolve an issue that cropped up in a debate with a friend. We were...
Jun20-13 11:03 PM
chiro
2 843
A-(B\bigcapC)=(A-B)\bigcup(A-C) If A-B={xlx\inA and x\notinB} A-C={xlx\inA and x\notinC} then...
Jun19-13 04:04 PM
mathman
4 1,128
Hi, I need some directions to target a problem that is bothering me quite a lot, even some links or small...
Jun19-13 02:17 PM
Stephen Tashi
5 871
Hi, I have a potential job opportunity where I will be given horse racing data i.e. average speed, max speed,...
Jun19-13 12:26 PM
great_sushi
6 758
Hi all, I have a question about measure theory: Suppose we have probability space (\mathbb{R}^d,\mathcal{B}^d,\mu)...
Jun18-13 05:00 PM
hwangii
0 489
Hi I am not sure where to post this question but I am trying to simplify this expression: r*c'w+c (As in R AND NOT...
Jun18-13 12:46 PM
MisterX
4 654
I have a set of data that was recorded from an engine that we are testing. We've noticed lately that a particular...
Jun17-13 12:52 PM
Raddy13
3 663

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