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

Feb2313 09:25 AM
micromass

1 
32,539 
Many textbooks describe a monoid as a category of one object having arrows for its elements. But they also define a...

Apr1212 02:48 PM
byron.hawkins

2 
1,231 
Hi, can you explain me what is "minimum chisquare + 1"?
thanks a lot! :)

Feb2212 05:51 AM
bznm

0 
737 
Apparently everyone uses either Discrete Mathematics and Its Applications by Kenneth H. Rosen or Discrete Mathematics...

Mar510 05:51 PM
JSuarez

1 
4,513 
Hi everybody,
I am looking for books about Logic and Set Theory. In particular, I am looking for not very...

Feb1905 05:12 PM
C0nfused

3 
2,115 
Hi everybody,
Mathematical theories are always based on some axioms. What else makes up an axiomatic theory? I...

Mar905 09:11 PM
mathwonk

9 
3,615 
i have looked all over the internet and found a ton of different answers to this question so i will try and ask it...

May2511 09:19 PM
c1gipe

3 
1,211 
What is the probability that at least two of a kind will be dealt in a hand of 5 cards using a standard deck of 52...

May2106 10:37 PM
robert Ihnot

6 
6,531 
For the set G where G = {{b},{c},d,{∅}}, I believe these are correct:
1) {{c}} \subseteq G
2) {b} \subseteq G
3)...

Aug2712 06:30 PM
Cabinbreaker

5 
1,418 
I’m student at the University of Arizona. In my political science class, I need to use SPSS to calculate bivariate...

Jun2910 01:56 PM
itstraining

4 
3,792 
I've been reviewing probability and came across this problem:
A penny may be fair or it may have two heads. It's...

Dec1505 05:40 PM
Hurkyl

14 
1,880 
A friend gave me this problem; it's been years since I've taken probability, and I'm really rusty. I'm curious how to...

Nov2106 12:15 PM
EnumaElish

3 
4,136 
I don't think I *really* understand the Central Limit Theorem.
Suppose we have a set of n independent random...

Jan2207 05:41 PM
HallsofIvy

3 
2,322 
I'm trying to compare fits to data in a certain way. I start with the initial data and fit and compute the \chi^2...

Oct1711 09:12 AM
cahill8

0 
1,054 
I'm dealing with a histogram and want to use poisson errors for each bin. For example, having 7 items in a bin gives...

Aug111 10:24 AM
pmsrw3

1 
1,368 
...I understand why it becomes more and more insignificant as the value of n increases, but what is the purpose of...

Feb1012 10:37 AM
Stephen Tashi

5 
8,287 
Hi! I am trying to figure out all possible combonations for 6 items among a group of 18 choices. So I turn to my old...

Nov1511 05:15 AM
chiro

2 
1,133 
What were the chances that Paul the octopus predicts winners in 7 matches in a row? Assuming that teams are of equal...

Jul1210 06:11 PM
SW VandeCarr

5 
1,971 
guys im bit confused with the statement borel cantelli lemma 2 :
"If the events En are independent and the sum of the...

Jun2312 01:21 PM
calios

2 
775 
If I were to use a twotone image e.g. fax, and were to transmit it linebyline, where the the individual pixels...

Dec1807 08:38 PM
EnumaElish

1 
1,796 
I am aware that, in statistics, things get difficult as soon as they get nonlinear. And taking the reciprocal of a...

Jul312 02:28 AM
DrDu

38 
3,862 
I know how to calculate the probability of getting a 1 and then 2 or 1 and 1 and etc, that's just 1/6 * 1/6
Now...

Apr1812 04:06 PM
calvinjhfeng

2 
1,225 
Ive never been taught functions using sets and I have been told that to really understand the real meaning of them it...

Jan2209 02:14 PM
cam875

5 
3,965 
i was confused about what the cardinality of the set {1,2,2,3,3,1,1,1} is?
is it 8 or is it 3?

May310 08:25 AM
g_edgar

2 
773 
okay so i have looked up things online and they when other ppl explain it it still doesnt make sense. im working on a...

May1310 05:34 PM
Fredrik

7 
2,605 
Hi guys, I'm new in this forum, so i hope you can help me with these problems. It might be easy, but i just started...

Oct2504 10:59 AM
NateTG

1 
1,337 
Hey!
Just as the title suggests I am looking for a good book on stochastic processes which isn't just praised...

Aug712 03:58 PM
dvchench

3 
4,576 
Hi,
Can someone plz solve this sum either by drawing a rook diagram or any other way
the question goes like:...

May505 12:55 PM
campa

6 
1,092 
If there is a box which has 7 red balls, 4 white balls and 9 black ball and you take 3 balls out what is the...

May505 09:53 PM
campa

3 
1,348 
Ok well here goes.
what is teh chance of flipping a coin 10 times and getting either 10 heads or 10 tails. Once this...

Jan1905 01:19 AM
Chronos

6 
5,575 
Can all logic be stated in mathematical equation? If so, I'm not sure how you would state cause and effect.

Apr2707 04:36 PM
Hurkyl

1 
1,187 
My apologies if the following is a stupid question. But is the empty set disjoint with itself? Certain aspects of...

Sep1609 04:51 PM
g_edgar

2 
3,173 
Suppose X and Y are continuous random variables with the joint pdf f_{xy}(x,y) on the \times square.
Is the...

Oct2310 04:57 PM
mathman

5 
1,249 
Hi everyone, here's a probability problem that seems really counterintuitive to me:
Find four random variables...

Dec1310 04:19 PM
mathman

2 
2,771 
Hi everyone,
I came across a problem that requires knowing this fact.
But can any open set in R^n be expressed...

Jun411 04:48 PM
CantorSet

5 
5,299 
Hi everyone,
I'm confused about Durrett's formal definition of a random variable, as well his formal notions of...

Jun611 04:13 PM
disregardthat

1 
1,080 
Hi everyone,
I have a feeling the following property is true but I can't find it stated in any textbook/online...

Aug1111 12:14 PM
CantorSet

5 
2,349 
Hi everyone,
Someone posed the question:
and Marilyn (high IQ record holder) answers:

Mar3012 10:43 PM
chiro

144 
22,237 
Hi everyone,
This is not a homework question. I just want to understand an aspect of linear regression better. ...

Aug2711 11:50 PM
Stephen Tashi

3 
2,488 
Hi everyone,
This is not a homework question but something I thought of while reading.
In the method of...

Aug3111 07:15 PM
CantorSet

3 
1,489 
Hi
context: i am trying to understand convergence of sequence of random variables.
random variable are just...

Aug610 04:31 PM
cuak2000

2 
5,581 