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

Feb2313 09:25 AM
micromass

1 
27,583 
Hi, supposed I have a set of data points, and each data point has a certain value of uncertainty associated with it.
...

Jun2111 04:50 AM
SW VandeCarr

4 
1,729 
Hello, I'm having trouble understanding the concept of confidence intervals...
I have written a program using...

Nov211 02:09 PM
Stephen Tashi

1 
847 
This should be so easy but I'm having trouble understanding why {{x},{x,y}} defines an ordered pair (x,y). I'm trying...

Jan1205 07:19 PM
JFo

10 
7,628 
I have tried finding a table's length using two methods. Both should be applicable, as using a ruler implies uniform...

Oct2112 12:26 PM
peripatein

15 
1,267 
If y = ax + bsinx, how may the least square estimates of a and b be found? Please advise!

Oct612 11:51 PM
chiro

1 
643 
How may the error on gravitational acceleration (g) be determined, given a set of measurements of time (t) and...

Oct2112 12:25 PM
peripatein

21 
2,221 
How may the error on the half life (using Poisson) be calculated? Barlow states that the error on the log would be...

Oct812 06:54 AM
mfb

14 
1,513 
Supposing a table's width and length are measured a number of times using a ruler with a certain resolution. A...

Oct1012 03:01 PM
peripatein

6 
790 
Why would a pvalue greater than .95 plausibly indicate that the errors/uncertainties were overestimated, i.e. a small...

Oct1712 06:43 PM
peripatein

2 
826 
Another question I have concerns a table's surface area.
If L=122.14±0.14 and W=24.30±0.57, I got that...

Oct2112 12:26 PM
peripatein

3 
592 
Hi,
Below is my attempt at a comparison between the two abovementioned methods of estimation. Does anything in the...

Oct1912 10:03 AM
Stephen Tashi

6 
957 
See attachment for the question.

∀x ∈ D, if P(x) then Q(x). this means ∀x P(x) > Q(x).
all you...

Feb1313 09:01 PM
persian52

5 
1,050 
I am a grad student of communication systems but earned a Bsc in physics . I am taking a module presently called...

Oct610 01:55 AM
bpet

1 
888 
What makes R^2 different from R? Unless I'm mistaken (which is unfortunately quite possible), R^2 has the "same...

Sep1804 03:15 PM
mathwonk

15 
14,455 
\Gamma(z)=\int^{\infty}_0x^{z1}e^{x}dz
z\in\mathhad{C}
In which problems in statistical physics we need gamma...

Aug209 01:50 PM
g_edgar

4 
1,293 
I've been struggling with this problem for about two weeks. My supervisor is also stumped  though the problem is...

Apr912 12:29 AM
Stephen Tashi

4 
1,808 
hi i have a question for hw. i cant seem to get the ans
you are going to draw 4 times, with replacement, from a...

Apr2406 01:16 AM
Nimz

8 
35,425 
What is an induced measure?
I have seen the formal definition many times i am trying to get a grasp of this concept....

May2812 08:50 PM
Vargo

1 
1,346 
Hi,
I have a gaussian of the form
exp.
I know that the FWHM=0.939A, but I cannot prove it.
I Let exp (i.e....

Apr2010 04:23 PM
mathman

1 
5,615 
Hi guys
I am having trouble with this question (i have attached). Any help with it would be very much appreciated....

Jan1608 12:50 PM
PeteSteve

2 
1,062 
Hi, I am given the following problem.
Given the vector
x+a*y x,yin Zmq, a in Zq. What is the probability that...

Aug1712 08:33 PM
haruspex

1 
575 
hi everybody, :smile:
while looking on the mutual information of two variables, one find that it is concave of p(x)...

Nov2011 09:17 AM
PetitPrince

0 
1,422 
It's simple for you mathematicians, but I'm a physician, I don't know much about set theory or logic and such, so it's...

Aug2610 06:06 AM
Petr Mugver

2 
2,086 
Hello, I would greatly appreciate any comment on the following problem:
Suppose that I estimate the spectral...

May2509 03:17 PM
pezze

0 
710 
I was once told that Goldbach's conjecture could perhaps fall into Gödel's first incompleteness theorem, and be true...

Feb2811 07:44 PM
pgimeno

12 
2,533 
Consider an exponential tower of three thousand 7's.
What is the remainder when you divide the tower by 11?
Note...

Sep706 11:15 PM
CRGreathouse

1 
1,755 
Question 1.
If I flip an unbiased coin a hundred times, I should get about 50 heads and 50 tails. Once in awhile...

Dec3010 11:29 AM
bpet

13 
1,354 
What is the probability of a fair coin landing on its edge after being tossed by an unbiased tosser? Is there a way...

Jan1411 10:31 PM
chiro

1 
1,960 
I'm trying to run a simple regression for a data set (n=165). I've determined via a Chow Test that there exists a...

Jun210 04:53 PM
EnumaElish

2 
1,716 
Can anyone recommend a good textbook that would include Gödel's incompleteness theorems?
Also I have some basic...

May2211 07:51 AM
micromass

1 
1,568 
Hello,
I am a Bio informatician and encountered Likelihood while executing the Molecular data. I have used one...

Dec2411 06:53 AM
Phaso

1 
1,911 
I keep reading the definition of an open set & neighborhood, but I just don't seem to get it.
This is the defn  "a...

Sep2311 03:12 PM
phiby

8 
1,562 
I was playing dice at a bar tonight, and after a while one of the guys I was playing asks "What do you think are the...

May2706 11:15 PM
shmoe

13 
2,003 
hi,
I've got an balanced incomplete block design, and I want to work out the efficiency of this design. In order to...

Apr2810 05:27 PM
Philip Wong

1 
1,916 
hi guys,
I'm wondering in multivariate analysis, when we standardize our mean to 0 (centroid our data) why do we have...

May2610 09:10 AM
EnumaElish

3 
2,299 
hi guys, several things about PCA (principle component analysis) I hope someone can run over with me and correct me if...

Aug610 05:21 PM
artbio

3 
997 
Hi guys,
I someone help me to set my logic straight and help me understand the following situation.
For three I...

Jan712 09:57 AM
D H

4 
1,340 
Hi guys,
I'm learning about partition sets of the sample space.
I understand that events form a partition of Ω when:...

Jan812 03:11 PM
SW VandeCarr

9 
2,198 
I was asked to help someone to work out the probability above. It was more than a year since I done similar questions...

May2512 01:58 AM
viraltux

5 
1,188 
Hi there,
I am currently reading Rohatgi's book "An introduction to probabilty and statistics"...

Sep1512 10:02 AM
chiro

7 
1,004 