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

Feb2313 09:25 AM
micromass

1 
31,139 
i read a little bit of the syllabus in my university graph theory course and i just wonder if the the kirchoff theorem...

Jan3110 09:44 AM
smstry

1 
3,583 
I am trying to create a calculator that let's a user provide the standard deviation, mean, frequency at that mean, and...

Dec209 05:57 PM
bpet

1 
1,817 
1,000,000 raffle tickets
9 prizes
Holding 1 ticket odds of winning 1 in 111,111.
What are the odds of winning...

Dec409 05:23 PM
grief

1 
3,047 
I just started learning some basic measure theory.
Could someone explain the difference between \overline{F(A...

Dec809 07:57 AM
g_edgar

1 
1,082 
Hi, I was just wondering, if I have a set (denoted by A)of natural numbers, 1,2,3,4,5,6,7,8,9,10 and each...

Dec809 09:39 PM
grief

1 
1,024 
If I have a set of Probability distributions on a product space with marginal constraints, is there any way to (how...

Dec1209 09:51 AM
Edwinkumar

1 
1,816 
What is the difference between Random Signal and Random Process?
A random process does not necessarily imply and...

Dec1209 04:39 PM
mathman

1 
1,497 
I'm lost no how to find the cutoff rejection region and which table to use?
This is an example,
Data
...

Dec1509 07:42 AM
statdad

1 
8,785 
who can help me?
ı want to prove this
If f : X → Y is injective and A is a subset of X, then f −1(f(A)) = A.
but...

Dec2309 03:25 AM
CompuChip

1 
998 
Let's say that a is an ordinal and it's cantor normal form is:
a = {\omega^{\beta_1}}c_1 + {\omega^{\beta_2}}c_2 +...

Dec2309 08:35 PM
JSuarez

1 
1,626 
How does one go about proving that C_n (Catalan number) is the number of ways to tile a stairstep shape of height n...

Jan1210 11:46 PM
techmologist

1 
1,921 
In many statements in probability, there is an assumption like bounded fourth moment, so is there any random variable...

Jan710 07:29 AM
bpet

1 
736 
I want to know the name of one little phenomena to learn more. I don't know how to explain it clearly, so please try...

Jan1110 07:47 PM
frustr8photon

1 
1,002 
For this question, i already solve the part a and part b. For the part c, i try to solve it but i cant get the answer...

Jan1010 04:08 AM
tinytim

1 
1,854 
if the joint p.d.f of x,y is given by
f(x,y)= a xy ,0<=x,y<=1
f(x,y)= 0 ...

Jan1210 06:28 AM
HallsofIvy

1 
790 
Hi everybody,
anybody can provide me with some guidelines to interpret boxpercentile plots? I am so confused :(. ...

Jan1710 08:31 PM
EnumaElish

1 
1,688 
I'm really lost on where to get started here. It's a two state system, one with energy 0 and the other with energy ε....

Jan1910 03:56 PM
mathman

1 
1,408 
A total of r keys are to be put one at a time, in k boxes, with each key
independently being put in box i with...

Jan2210 07:27 AM
bpet

1 
2,577 
I am running a test where I start by preforming a calibration to fit the following linear line
V= a * X + b
...

Jan2610 05:43 PM
EnumaElish

1 
1,112 
I was trying to prove that the sigma algebra generated by the set of open intervals is the same as the sigma algebra...

Jan2810 05:03 PM
Landau

1 
7,157 
Suppose interest is given at 12% annually, compounded once a year. At the end of the year we will have (A = starting...

Feb110 09:36 AM
jambaugh

1 
835 
Dear Community,
I am faced with a challenge. I can't quite grasp the implications of this.
I schould've listened...

Feb510 11:13 AM
EnumaElish

1 
1,244 
Hi, I have a question about standard errors in the context of this problem. Any help would be greatly appreciated:
...

Feb510 04:41 PM
EnumaElish

1 
873 
Here goes:
If F is a probability distribution function and /phi is its integrable characteristic function. If the...

Feb710 04:10 PM
mathman

1 
744 
If \overline{_}X1 and \overline{_}X2 are the means of independent random samples of size n1 and n2 from a normal...

Feb810 11:28 PM
Mandark

1 
2,850 
Hey all i struggling to understand, these concepts. would some explain to me the relationship and differences the...

Feb1910 04:18 PM
mathman

1 
2,970 
1) Distribution is a uniform distribution on the interval (Ө, Ө+1)
Show that Ө1 is a consistent estimator of Ө....

Feb1310 05:29 PM
statdad

1 
3,987 
Hi everyone. I was going through a proof of Wald's equation, where it was claimed that if {S_n} is a sequence defined...

Feb1710 05:45 AM
bpet

1 
848 
i am wondering about how it is possible compute the probability of win, loose or draw in football game or any other...

Feb2310 07:03 PM
zli034

1 
1,555 
In the Chisquare test, my textbook says that degrees of freedom are the number of independent variables minus one so...

Feb2310 06:45 PM
zli034

1 
1,536 
Hi everyone
There is a question which I find very hard to solve and it goes like this..
A symmetric coin with...

Feb2210 03:05 PM
mathman

1 
1,630 
Hi,
I need to translate some conditions/statements into mathematical notation but my mind is drawing blank right...

Feb2410 05:55 AM
CompuChip

1 
919 
Hello, I am having difficulty approaching this problem:
Assume that K, Z_1, Z_2, ... are independent.
Let K be...

Feb2410 09:13 AM
torquil

1 
3,734 
Let X be the set X=\left\{x_1,x_2,...,x_n\right\}, where each x_i is a Bernoulli random variable and P be the set...

Feb2610 01:22 PM
EnumaElish

1 
1,967 
what is the differenae between natural and real numbers

Feb2810 09:59 AM
CompuChip

1 
703 
Apparently everyone uses either Discrete Mathematics and Its Applications by Kenneth H. Rosen or Discrete Mathematics...

Mar510 05:51 PM
JSuarez

1 
4,457 
Suppose you have multiple independent Bernoulli random variables, X_1,X_2,...,X_n, with respective probabilities of...

Mar310 04:41 PM
mathman

1 
3,813 
Could anyone help me with the following proof?
F^2_n + F^2_(n+1) = F_(2n+1) for ngreater than or equal to 1?

Mar910 11:26 PM
kate1729

1 
993 
As per my textbook: (Ross, 8th ed.), the probability of 10 couples being seated around a table, where every guy's with...

Mar1110 08:24 PM
IniquiTrance

1 
2,649 
Why does a distribution function F_X have to be right continous ?
is'nt just making sure it is nondecreasing enough

Mar1110 03:58 PM
mathman

1 
706 