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

Feb2313 09:25 AM
micromass

1 
32,580 
Hello everyone,
For homework my instructor assigned problem from the book. To show which problems to do she wrote...

Jan2413 10:37 AM
nicnicman

1 
499 
I hope someone can put me on the right track here. I need to derive the infinitesimal generator for a bridged gamma...

Jan2413 04:19 AM
bpet

6 
1,227 
Say given a simple acyclic directed graph with n nodes , which includes a starting node s0 and ending node e0 (i.e., a...

Jan2313 03:18 AM
bpet

1 
946 
I'm interested in the question of defining a reliability parameter of a model of the probability of an event.
Say...

Jan2213 04:55 PM
disregardthat

7 
930 
According to the truth tables in my computer architecture text, P → Q is false if P is true and Q false; and true...

Jan2213 08:54 AM
ato

14 
1,804 
Hi,
I try to teach myself Hidden Markov Models. I am using this text
www.cs.sjsu.edu/~stamp/RUA/HMM.pdf as...

Jan2113 02:12 PM
SamTaylor

4 
1,271 
http://www.physicsforums.com/attachment.php?attachmentid=54893&stc=1&d=1358739001
Is this sufficient?

Jan2113 12:58 PM
blindgibson27

5 
738 
Does μx mean the same thing as E? Also, does σ2x mean the same thing as Var X?

Jan2113 02:01 AM
whitehorsey

2 
1,110 
Hello, I had a question about data which is represented by a fractal distribution. I know that the linear regression...

Jan2013 08:44 PM
Stephen Tashi

7 
1,394 
This applies to natural numbers n and N where n<N.
We have N balls representing numbers 1,2,...,N.
We randomly...

Jan2013 03:22 PM
Pzi

8 
1,141 
Hi,
I'm trying to use the kolmogorov smirnov test in in R to compare one distribution with another. I'm getting the...

Jan1913 11:34 AM
Stephen Tashi

1 
1,229 
Hi there, heres the question im given, i will provide the answer that I think is correct, do you mind checking it and...

Jan1813 06:51 PM
lugita15

2 
926 
What I mean by this is,
Say I roll a die, given the specific condition that I get four eights consecutively such as ...

Jan1813 06:38 PM
mathman

2 
571 
My question is: Is there any gain in intuitive mathematical understanding of degrees of freedom from learning their...

Jan1813 05:23 AM
Stephen Tashi

10 
1,304 
http://i.imgur.com/fdN2q.jpg
I have posted this question before but I don't think I was clear on what i was trying...

Jan1713 06:41 PM
Stephen Tashi

6 
1,387 
About the normal probability distribution: with formula
P(X=x) = (1/(σ*sqrt(2π))*exp((xμ)2/2σ2), what happens...

Jan1713 10:23 AM
CompuChip

4 
741 
Actually describing the process of arrivals for clients in a shop:
Getting difficulties with math describing of the...

Jan1613 10:09 PM
chiro

18 
1,060 
Dear people,
I want to implement the Extended Kalman Filter for identification. I have a model of the system and I...

Jan1613 03:34 AM
Baumwolle

0 
538 
I don't know if there was talking about this or somebody already did this but do you think it would be possible to...

Jan1413 01:13 AM
Rogerio

2 
775 
In a lecture I had it was mentioned that the Pareto distribution is used to model insurance losses for extreme events....

Jan1313 09:39 AM
0xDEADBEEF

0 
863 
I tried to understand the following concept but a friend of mine came up with a different result. Can someone explain...

Jan1213 09:15 AM
jfgobin

2 
648 
So if there were say 10 teams that were randomly matched into alliances of 3 v 3 with a score given for eatch match....

Jan1213 01:08 AM
bpet

6 
1,212 
The question:
A box and whisker plot is made from the lengths of 39 salmon. No two lengths are the same. Two of the...

Jan1013 04:55 PM
joel amos

2 
917 
I am supposed to have an image consisting of overlapping curves. What I have is an image where the curves are missing...

Jan1013 01:56 PM
Charles49

6 
759 
Hello,
I've got some data on an epidemic in various locations  the total number of agents and number killed by the...

Jan1013 11:51 AM
Stephen Tashi

10 
1,236 
Let X be an initial segment of a set A. By definition, if x is in X, a is in A and x>a then a is in X too. Can we say...

Jan913 08:34 AM
HallsofIvy

1 
660 
This is similar to one of my previous posts, but is quite different.
There are 13 buttons (numbered 1, 2, 3,...

Jan813 07:26 PM
davidbdix

3 
786 
I am reading Protter's book on stochastic integration and differential equations.
On a couple of occasions the...

Jan813 06:15 PM
justinmir

0 
704 
Hi,
I'm trying to simulate a discrete time time markov chain in matlab. Unfortunately I am neither a markov chain...

Jan713 07:01 PM
chiro

4 
1,363 
Suppose we need to find the probability that a binomial random variable with n = 100 and p = 0.5 is more than two...

Jan713 06:59 PM
chiro

1 
875 
Could someone explain the meaning of "Mean Squared Deviation"?
Also, in <x1+x2+..xn>
what is the meaning of the...

Jan613 03:38 PM
zeeshahmad

4 
1,143 
Alright my brother posed this question to me tonight. You have 7 coins (for this sake we will go with the "normal"...

Jan613 08:22 AM
D H

21 
1,860 
Hi had this question on my last "Statistical Inference" exam. And I still have some doubts about it. I determined that...

Jan513 06:39 PM
nabila_t16

9 
22,073 
Hello guys, I need to understand the ARCH and GARCH models and so I need some advice on where I should begin my study....

Jan513 07:19 AM
hayyan1

2 
986 
On one side one can define secondorder variables as ranging over all elements of Pk(M) for all natural numbers k...

Jan413 11:47 PM
nomadreid

1 
627 
This is NOT homework. This is a personal project I am working on.
First and foremost, THANK YOU in advance for...

Jan413 04:38 PM
eveellence

12 
1,718 
From the perspective of mathematical philosophy, what is the difference between a "theorem" and a "law"?
In...

Jan413 03:24 PM
Stephen Tashi

3 
933 
This question has been bothering me for a while. If you roll a 6 sided die 6 times, is there a 1 probability that you...

Jan413 01:44 PM
pierce15

2 
924 
Hello,
I'm a second year mathematics and economics student, and I've been hired by an economic development...

Jan413 12:16 PM
Stephen Tashi

4 
1,047 
Consider stochastic process ##X(t)## with properties
$$
\langle X(t) \rangle = 0,
$$
$$
\langle X(t)...

Jan413 09:31 AM
Jano L.

4 
904 