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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 32,011
How to define relationship between two sets (mathematics)? Please, let me make an assumption here. Assumption : We...
Mar23-11 12:25 PM
Stephen Tashi
1 2,144
Hello all, I am deparing me with a problem or a doubt about the calculation of probabilities in one matrix. I...
Mar6-07 08:23 AM
Paixao
0 1,095
Given a simple random walk X_n started at 1, and stopped the first time it hits zero (so it could be something like...
May9-10 04:55 PM
palace
0 1,217
Given a Natural number K, how many combinations \ of Natural numbers vectors are there, so that \ ? I'm...
Apr11-05 02:08 PM
Palindrom
2 1,059
Is it correct that \ , N denoting the natural numbers? If not, is there another symbol for the left hand side of the...
Sep6-05 08:43 AM
Palindrom
6 3,044
Let's have a look at \left\{ \neg,\equiv\right\}. How could one show that this isn't complete? I've tried finding...
Jun1-07 09:59 AM
Palindrom
2 1,332
First encounter with the term, I'd like some help understanding it. I know there are several approaches, but this one...
Aug19-07 07:08 PM
EnumaElish
5 3,727
Here's a stupid question: for a Gaussian process, are these two properties equivalent?
Oct30-09 05:20 AM
Palindrom
2 3,446
This is probably a stupid question, but here goes: based on the covariance function of some (centered, stationary)...
Feb20-10 04:04 PM
SW VandeCarr
16 4,485
c = correlation between the IQs of parents and children s = standard deviation for IQs of the group the parents...
Dec29-10 11:21 AM
Jupiterx5
10 1,439
Hi folks, I am in the energy industry, and we do linear/multilinear regressions stats. One of the concepts being...
Feb4-11 07:27 PM
statdad
1 3,342
How many elements are in a sub1 intersect a sub 2 which equals a null set when a sub 1 =12 and a sub2 = 18
Sep4-05 11:42 AM
neurocomp2003
1 1,092
Hello, I am trying to brush up on some mathematics and realized that I have to start from the very bottom. I keep...
Jan27-09 09:15 PM
mXSCNT
2 1,005
Hello, Trying to go through Tom Apostle text on Calculus. There is an exercise about proving the associative law...
Mar21-09 08:31 PM
statdad
2 11,375
Hello everyone, I am trying to understand situations under which Gaussian distribution would apply. For example, I...
Nov25-09 01:09 AM
SW VandeCarr
9 2,706
Hello everyone, I have a couple of questions about the Rice distribution and deriving the moments for the...
Apr19-10 12:49 PM
pamparana
0 754
Hello everyone, I just started reading "Fundamentals of Statistical Signal processing" by Steven Kay and just got...
Apr22-10 04:34 PM
mathman
1 1,371
Hello, Just came across this that: E = 0 the expected value of the product of cos(t)sin(t) is 0. However, I...
May3-10 08:27 AM
g_edgar
1 3,021
Hello everyone, I am trying to understand a paper and am stuck at one place. The statement says something as...
Oct13-10 01:23 PM
SW VandeCarr
1 1,484
Hello everyone, I am having a bit of trouble understanding the metropolis hastings algorithm which can be used to...
Oct14-10 04:47 PM
pamparana
0 1,007
Hello everyone, I have a (noob!) question about Markov Random Field potential function. So, I am looking at some...
Jun28-11 05:18 PM
pamparana
0 726
Hello everyone, I am trying to figure out some overall possibilities of some states for a certain configuration and...
Feb4-12 06:45 PM
pamparana
14 1,474
Hello all, I am reading a paper and there is one bit in the paper that I am having a bit of trouble understanding....
Jun17-12 10:51 AM
viraltux
3 961
Hello everyone, I have a question (perhaps a very noob one as well!) regarding correlation between variables where...
Aug8-12 12:23 PM
Number Nine
5 895
Hello everyone, I am trying to understand markov random fields and how it is related to the Gibbs measure and...
Oct11-12 11:02 AM
Stephen Tashi
4 505
Hello everyone, I have a question about generative and discriminative models. As I understand it generative models...
May9-13 12:01 PM
atyy
1 579
Hello, I am trying to understand what makes estimating the posterior distribution such a hard problem. So, imagine...
Feb14-14 11:35 AM
Stephen Tashi
1 254
1st a bit of Background. I can't go into too much detail as there is huge commercial implications to the project, but...
Mar21-07 11:16 PM
Hurkyl
10 1,958
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 2,837
Hi, There are three variables ax, ay and az, my question is: How to simplify the mean value...
Nov2-11 05:46 PM
Stephen Tashi
4 1,255
My professor gave me data points representing living cells on a rectangular plane and was told to analyze their...
Jun10-12 02:56 PM
viraltux
10 1,237
I have a problem I'm working on that I'm a bit stuck on. In this problem we are allowed to use Taut Con in our Fitch...
Dec16-06 03:41 AM
paradox
0 2,361
Consider the example of flipping of a coin. There are only two inputs. The output may be different each time you flip...
Dec11-11 04:46 PM
SW VandeCarr
1 1,273
I need help on the following Questions that I'm working on. Can someone explain to me and show me how they came up...
Apr1-04 01:15 PM
matt grime
1 2,803
I would like your assistance with the following: The mean income of a group of sample observations is $500; the...
May17-10 08:36 PM
MRAguy
11 75,437
I need help on this problem.. my answer that i get is the following for A, but i'm not sure. can you help me with a...
Apr2-04 02:58 AM
matt grime
1 8,194
I have a question that I would like your assistance to see if I have the correct info: In 1990 there were 9.19...
Apr9-04 05:02 AM
pig
5 5,082
HI group, I was wondering if someone can check my answers to see if i'm right on the following questions. Thanks!! ...
May1-04 05:52 AM
HallsofIvy
1 5,026
Hi, I am trying to figure out what the probability distribution is for the following: 1. Roll 4 dice. 2. Take...
Feb14-12 07:17 PM
MrAnchovy
4 2,191
Repeat 4 times the following experiment: We pull 3 cards from 3 normal decks (one sheet each), we note what some...
Mar11-13 03:43 PM
mathman
3 672

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