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

Feb2313 09:25 AM
micromass

1 
32,762 
Imagine points in a plane with a uniform density. To use a simple model, consider just a finite region such as the...

Jul2814 09:55 PM
marcusl

2 
220 
Hi everybody, I apologize if this question is too basic but I did 1 hour of solid Google searching and couldn't find...

Jul2814 04:07 PM
gill1109

2 
225 
I have 3 fair dices. The probability of 2 of them lying in the same number without the 3rd doing so is given by...

Jul2814 09:38 AM
gill1109

9 
616 
Prove Russel's paradox by contradiction and what does it tell us about sets?
I tried doing it like this and I am not...

Jul2714 10:52 AM
Stephen Tashi

5 
933 
From what I understand, and please correct me if I'm wrong:
An "Argument" in sentential logic is a set of...

Jul2714 03:07 AM
twoslit

7 
3,217 
I've been figuring out the use of the nonparametric bootstrap and if I understand correctly, this is the procedure:
...

Jul2514 10:31 AM
Stephen Tashi

3 
872 
I thought I understood all the theory quite well and sat down to begin coding until I realized that calculating a...

Jul2514 08:36 AM
TheOldHag

4 
570 
Suppose I have around 20 exposures that potentially affect an outcome and I want to see which exposures have bigger...

Jul2414 09:14 PM
FactChecker

3 
511 
Three statements:
1) I will take a shower if the water is warm.
2) I will take a shower unless the water is cold....

Jul2214 04:04 PM
MrAnchovy

14 
1,195 
I ran a multinomial logistic regression on some likart data (15 survey response questions). For some background, the...

Jul2114 03:58 PM
WWGD

2 
818 
Hello,
From an offset zener diode breakdown circuit, I have collected a set of bytes from an ADC. The values...

Jul2014 06:06 PM
FactChecker

8 
1,088 
The name in the title is probably not what it's called but it so similar that I chose it anyways.
This is a problem...

Jul2014 04:50 PM
da_nang

14 
3,769 
Suppose we have a class equivalence relation ~ on a proper class C. Can we form the class of equivalence classes C/~?...

Jul1914 09:21 PM
disregardthat

10 
1,792 
hi pf!
so i am going to take the skewness and kurtosis of a sample. however, if i already have a pdf, is there...

Jul1814 07:07 AM
Simon Bridge

4 
1,370 
I am reading Introduction to Set Theory (Jech & Hrbacek) and in one of the exercises we're asked to prove that the...

Jul1814 01:05 AM
WWGD

8 
1,269 
So, today we were studying the introduction of probability. For me it is fairly simple (for now).
My question is...

Jul1514 09:45 PM
FilupSmith

4 
1,925 
I am trying to derive the Probability distribution of Geometric Brownian motion, and I don't know how to find the...

Jul1514 01:56 PM
Greg Bernhardt

1 
2,060 
Okay, so I guess my first question is if the main utility of the normal distribution ##f(x)## is to provide a...

Jul1414 04:01 AM
homeomorphic

2 
2,343 
Consider a onedimensional random walk on the integer lattice, starting at 0. The next step is decided to be +1 or 1...

Jul1414 03:26 AM
opapa

4 
2,477 
So I take <z10, +> this to be the group
Z10 = {0,1,2,3,4,5,6,7,8,9} Mod 10 group of additive integers and I...

Jul1214 07:08 PM
DUDEEGG

5 
2,402 
I've been thinking about the Central Limit Theorem and by my understanding it states that the sum of randomly...

Jul1114 01:12 AM
colinman

4 
1,872 
I'd like some help understanding a proof, from http://www.statlect.com/cndprb1.htm. Properties are introduced, which a...

Jul914 01:22 PM
scinoob

5 
3,359 
Hey!
I'm working with some regression related stuff at the moment and i'd need some help with multiple variable...

Jul714 07:42 AM
Uniquebum

4 
3,353 
I am studying an article which involves stochastic variables http://www.rmki.kfki.hu/~diosi/prints/1985pla112p288.pdf....

Jul614 04:30 PM
mathman

1 
1,995 
I understand how using classical or bayesian statistical inference os often very helpful for solving information...

Jul214 07:10 PM
marcusl

1 
2,512 
I have a set of scored items with the scores in the interval . Roughly speaking the distribution of scores is about...

Jul214 08:46 AM
TheOldHag

2 
2,870 
i am a complete nooby in statistics, therefore the question i am about to ask may sound very unprofessional warning :)...

Jul114 10:15 PM
Greg Bernhardt

1 
2,481 
I am starting a project on signal detection theory (cognitive focus), and working with a winbugs expansion in matlab....

Jul114 10:00 AM
scinoob

1 
2,690 
When you have a graph like this one here:
https://www.dropbox.com/s/tchpodpt2gp1huf/Bisimulation.jpg
Of course...

Jul114 08:45 AM
Greg Bernhardt

1 
2,406 
Hello again pf!
i was wondering if any of you could help me with the intuition for the following structure...

Jul114 08:45 AM
Greg Bernhardt

1 
2,597 
I think the first thing that is confusing me is the terminology. There are too many similar terms (e.g. probability...

Jun3014 09:00 PM
V0ODO0CH1LD

16 
3,101 
I try to understand the following equation but I can not.
I have basic knowledge about Bayes rule and joint...

Jun3014 03:59 PM
mathman

1 
2,316 
Dear Fellows,
If we fit our data to a quadratic equation then What is meant by standard error for linear and...

Jun2914 10:19 AM
Stephen Tashi

3 
2,656 
Of the 32 teams that qualify for the world cup (8 groups with 4 teams each), what percentage would a roster of 16...

Jun2714 04:05 PM
D H

2 
2,436 
I was watching yesterday my county(Greece) in international cup,and I thought something about probabillities. Lets...

Jun2614 04:08 PM
verty

6 
2,646 
I'm a salesman and I have a list of 100 addresses all equidistant from each other and from where I'm standing right...

Jun2614 11:24 AM
noelo2014

6 
2,583 
I really need some help here, will appreciate any effort. I calculated time series of tidal stresses. It turned out...

Jun2514 10:50 PM
Stephen Tashi

2 
2,385 
Hi,
I would like to score an item. The item has around 10 parameter. Each parameter is depics how it reacts to...

Jun2514 09:23 PM
FactChecker

2 
2,336 
How far could you see, on average, from a planet that was surrounded with infinite number of identical stars like the...

Jun2514 09:52 AM
mfb

55 
14,077 
I have a psychological testing instrument that produces an ordinal measure (0, 1, 2, 3, 4, 5). I want to change this...

Jun2514 06:49 AM
Simon Bridge

7 
2,336 