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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 32,589
Hello, I have just started learning these things, would really appreciate any help on this. There are 4 nodes in a...
Jul15-13 12:07 PM
verty
1 459
Hi, I have the following problem. Consider an age-structured population growing according to a Leslie matrix....
Jul12-13 09:07 AM
Stephen Tashi
1 464
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
1 531
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
1 397
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
1 598
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
1 700
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
1 605
So the following process involves W(t) which is Brownian Motion, and I need to prove that it is a martingale. ...
Jun11-13 09:50 AM
Steve Zissou
1 880
I am not able to understand how to go about this problem: Find the minimum mean square estimator for the scalar...
May31-13 01:59 AM
chiro
1 600
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
1 478
Suppose that there are 2 apple trees. Tree A and tree B. A produces 0.7 of the farm's apples. And B produces 0.3....
Jun9-13 05:25 PM
mathman
1 727
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
1 713
derive the MGF hence find their mean and variance 1 weibull distribution 2 pareto distribution 3 lognormal...
Jun21-13 08:51 AM
HallsofIvy
1 768
Are both same or different? Can someone give me some example to understand? Thanks in advance
Jun25-13 11:46 AM
MarneMath
1 478
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
1 511
Hi, I have a data set containing values for power and direction. I would like to produce a probability density...
Jul26-13 06:41 PM
Stephen Tashi
1 499
Hi, I would like to know, how do I evaluate the quality of correlation? Specifically, I have a set of N...
Jul26-13 08:55 PM
chiro
1 688
I imagine myself flipping a coin repeatedly and recording the outcomes. With only the WLLN being true, I expect to...
Jul28-13 11:36 PM
Stephen Tashi
1 530
Hi all, i got a set of negative values ranging from -0.0001 to -0.3. How do i effectively make them easier to compare...
Jul30-13 05:13 AM
chiro
1 437
Hi, friends! Since this is my first post, I want to present myself as an Italian who is trying to teach himself...
Aug3-13 01:38 AM
Stephen Tashi
1 565
My question is what is the the meaning of the T(as a power) in the following line? ...
Aug4-13 05:19 AM
verty
1 840
Hi to all, I have the following problem: I want to characterize two lots of detectors in order to retrieve their...
Aug5-13 02:06 PM
mfb
1 366
Hi all, I have a dataset of 3 continuous variables and 1 binary (YES/NO) variable, I am trying to establish a model...
Aug8-13 04:54 PM
Stephen Tashi
1 402
I'm casually working on determining the probability of a team in a given sport (let's say football) reaching at least...
Aug9-13 09:49 AM
Stephen Tashi
1 674
A set x is well-ordered by < if every subset of x has a least element. Here < is assumed a linear ordering, meaning...
Aug11-13 02:10 PM
verty
1 428
Hi, I'm trying to solve the following question, but unsure how to approach it. A paper manufacturing process states...
Aug21-13 04:18 PM
mathman
1 527
This proof makes no sense to me. The theorem to be proved is Theorem 44. {x,y} = {u,v} → (x = u & y = v) V (x =...
Sep1-13 04:42 AM
CompuChip
1 751
I am sure you are all familiar with this. The number generated by picking different integers along the diagonal is...
Aug31-13 04:31 PM
statdad
1 676
If we have two disjoint events then it comes to reason that P(A or B) = P(A) + P(B) - 0 However, if I rewrite it as...
Sep3-13 08:08 PM
fateswarm
1 768
If a probability density function is fx(x) = 5x^4 for 0<x<1 and 0 elsewhere, then the expected value of E is the...
Sep9-13 04:54 PM
fateswarm
1 685
Dear, I assume that a signal S is expressed as S = a*S1 + b*S2, where a, b are weight constant, and S1, S2 are...
Sep16-13 08:08 AM
mfb
1 827
I'm taking a course in probability and statistics and encountered an exercise with a formulation that doesn't make...
Sep20-13 01:20 PM
verty
1 645
Does anyone know if there is a good place to find a list of proof identities? Basic stuff like the disjoint or if-then...
Sep25-13 07:17 PM
Stickybees
1 2,169
Hello, I don't seem to know how to ask google this question so I thought I'd see if I could get an answer from here. ...
Sep28-13 08:39 AM
mfb
1 693
I am trying to create a simple implementation of the Bayes decision rule with minimum error criterion and I am running...
Oct4-13 08:56 PM
Stephen Tashi
1 2,441
http://img202.imageshack.us/img202/3224/620u.jpg In A for this question F(alpha+1)=alpha*F(alpha) and I'm...
Oct6-13 06:57 AM
SteamKing
1 670
If X is a Euclidean subspace, what does Fr(X) mean? I have been unable to find any references to this notation, so any...
Oct7-13 04:03 AM
fzero
1 1,366
I have attempted a derivation of the Students t-distribution probability distribution function in the attached pdf. I...
Oct14-13 03:08 PM
Office_Shredder
1 1,240
Let F be any distribution function. With either the indefinite integral, or taking limits at plus and minus infinity,...
Oct21-13 10:04 PM
economicsnerd
1 668
Say we want a set of random values that are distributed according to some distribution function f(x). A common way...
Oct22-13 02:31 PM
mathman
1 501

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