
Please post any and all homework or other textbookstyle problems in one of the Homework & Coursework Questions...

Feb2313 09:25 AM
micromass

1 
32,545 
Hello,
I have just started learning these things, would really appreciate any help on this.
There are 4 nodes in a...

Jul1513 12:07 PM
verty

1 
458 
Hi, I have the following problem.
Consider an agestructured population growing according to a Leslie matrix....

Jul1213 09:07 AM
Stephen Tashi

1 
462 
Consider these propositions,
P=It is raining, and Q=There are clouds in the sky
R=giving a cookie by me, and...

Jul1013 01:00 AM
Stephen Tashi

1 
529 
I have the following silly problem I don't know how to get round:cry:
I have a set of datapoints, each point has...

Jul213 09:59 AM
f95toli

1 
395 
Just finished my math studies.
I have been studying mostly statistics and have some experience in R language.
Need...

Jun2913 08:04 PM
MarneMath

1 
597 
Hi
Please advice me a good book on mathematical statistics.I want it to be oriented in math students or engineering...

Jul213 07:43 PM
theoristo

1 
695 
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...

Jul913 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.
...

Jun1113 09:50 AM
Steve Zissou

1 
877 
I read in Mirman's book on group theory that SO(2) is the only simple group that is not semisimple. Can anyone explain...

Jul713 11:23 PM
Stephen Tashi

1 
478 
Is there a theorem which says that if certain natural number sequences exist, then some large cardinals exist. Can...

Jun2713 09:19 PM
alephaleph

1 
712 
derive the MGF hence find their mean and variance
1 weibull distribution
2 pareto distribution
3 lognormal...

Jun2113 08:51 AM
HallsofIvy

1 
767 
Are both same or different? Can someone give me some example to understand?
Thanks in advance

Jun2513 11:46 AM
MarneMath

1 
477 
So I've been banging my head on this problem for a few days and haven't gotten very far, hoping someone has some...

Jun2913 11:07 AM
mfb

1 
507 
Hi,
I have a data set containing values for power and direction. I would like to produce a probability density...

Jul2613 06:41 PM
Stephen Tashi

1 
495 
Hi,
I would like to know, how do I evaluate the quality of correlation?
Specifically, I have a set of N...

Jul2613 08:55 PM
chiro

1 
679 
I imagine myself flipping a coin repeatedly and recording the outcomes. With only the WLLN being true, I expect to...

Jul2813 11:36 PM
Stephen Tashi

1 
527 
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...

Jul3013 05:13 AM
chiro

1 
435 
Hi, friends! Since this is my first post, I want to present myself as an Italian who is trying to teach himself...

Aug313 01:38 AM
Stephen Tashi

1 
562 
My question is what is the the meaning of the T(as a power) in the following line?
...

Aug413 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...

Aug513 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...

Aug813 04:54 PM
Stephen Tashi

1 
401 
I'm casually working on determining the probability of a team in a given sport (let's say football) reaching at least...

Aug913 09:49 AM
Stephen Tashi

1 
671 
A set x is wellordered by < if every subset of x has a least element. Here < is assumed a linear ordering, meaning...

Aug1113 02:10 PM
verty

1 
427 
Hi, I'm trying to solve the following question, but unsure how to approach it.
A paper manufacturing process states...

Aug2113 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 =...

Sep113 04:42 AM
CompuChip

1 
750 
I am sure you are all familiar with this. The number generated by picking different integers along the diagonal is...

Aug3113 04:31 PM
statdad

1 
674 
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...

Sep313 08:08 PM
fateswarm

1 
765 
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...

Sep913 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...

Sep1613 08:08 AM
mfb

1 
824 
I'm taking a course in probability and statistics and encountered an exercise with a formulation that doesn't make...

Sep2013 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 ifthen...

Sep2513 07:17 PM
Stickybees

1 
2,166 
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.
...

Sep2813 08:39 AM
mfb

1 
692 
I am trying to create a simple implementation of the Bayes decision rule with minimum error criterion and I am running...

Oct413 08:56 PM
Stephen Tashi

1 
2,437 
http://img202.imageshack.us/img202/3224/620u.jpg
In A for this question
F(alpha+1)=alpha*F(alpha)
and I'm...

Oct613 06:57 AM
SteamKing

1 
667 
If X is a Euclidean subspace, what does Fr(X) mean? I have been unable to find any references to this notation, so any...

Oct713 04:03 AM
fzero

1 
1,365 
I have attempted a derivation of the Students tdistribution probability distribution function in the attached pdf. I...

Oct1413 03:08 PM
Office_Shredder

1 
1,237 
Let F be any distribution function. With either the indefinite integral, or taking limits at plus and minus infinity,...

Oct2113 10:04 PM
economicsnerd

1 
666 
Say we want a set of random values that are distributed according to some distribution function f(x).
A common way...

Oct2213 02:31 PM
mathman

1 
497 
A box contains four tickets, numbered 0,1,1, and 2. Let Sn be the sum of the numbers obtained from n draws at random...

Oct2413 04:08 PM
mathman

1 
718 
Hi, I hope I'm asking this in the right place. I need to understand this in order to complete a project, but it's not...

Oct2513 10:23 PM
Stephen Tashi

1 
887 