How Many Distinct Positive Integer-Valued Vectors Satisfy This Equation?

  • Context: Undergrad 
  • Thread starter Thread starter anik18
  • Start date Start date
  • Tags Tags
    Probability Statistics
Click For Summary

Discussion Overview

The discussion revolves around two distinct mathematical problems: the first involves finding the number of distinct positive integer-valued vectors that satisfy a specific equation with constraints, while the second concerns the Kendall concordance coefficient and its calculation steps. The scope includes homework-related inquiries and technical clarifications.

Discussion Character

  • Homework-related
  • Technical explanation

Main Points Raised

  • One participant asks how many distinct positive integer-valued vectors (x1, x2, ..., x6) satisfy the equation x1 + x2 + ... + x6 = 12, given that two of the xi must equal 1.
  • Another participant points out that the original poster has not shown any understanding of the problem or relevant equations, implying a lack of effort in solving the homework question.
  • A different participant expresses frustration about the expectation of help without showing work, suggesting that the forum should assist in problem-solving.
  • There is a mention of a homework forum, indicating that there are designated spaces for such inquiries.
  • Another participant introduces a question about the Kendall coefficient, specifically asking for help in calculating Smax and the steps involved in deriving the formula.
  • A later reply questions the relevance of the Kendall coefficient inquiry to homework, providing a link to a non-technical description of the topic.
  • In response, the original poster of the Kendall coefficient question clarifies that it is related to their dissertation work and expresses difficulty in finding information.

Areas of Agreement / Disagreement

Participants generally disagree on the appropriateness of posting homework questions without prior effort. There are competing views on the expectations of assistance in the forum, and the discussion regarding the Kendall coefficient remains unresolved with a lack of clarity on the steps needed for its calculation.

Contextual Notes

Some participants have not provided relevant equations or shown their work, which may limit the ability to assist effectively. The connection between the two mathematical inquiries is not clearly established.

anik18
Messages
9
Reaction score
0
how many distinct positive integer- valued vectors (x1 , x2 , . . . , x6) satisfying
x1+ x2+. . .+x6 = 12 if 2 of xi must be = 1 ?

please help this question

book: A First Course in Probability (7th) by Ross
 
Physics news on Phys.org
You agreed to abide by the rules when you joined Physics Forums. You have now posted several homework problems that specifically say "no homework". Moreover, you have not shown any understanding of the problem (what are the relevant equations?) or shown any work.
 
some of the homework i am unable to do. Then what is the benefit of opening the forum website. they have to help someone to solve their problems not always showing their own answers.
 
no one is required to help. And there is an homework forum
 
Kendall coefficient

Could you please help me in the Kendall concordance of coefficient?
The Kendall coefficient figure has been shown in the attached file.
My question is how can we get the figure Smax? What is the start and what kind of steps are to get this formula?
If you have this steps could you please send me. It is very urgent to me.

Thank you.
J
 

Attachments

  • kendall.jpg
    kendall.jpg
    4.3 KB · Views: 567
Hi, EnumaElish
The usage of Kendall coefficient was an instruction to develop something in my dissertation and my consultant question was the above.

I didn't find anywhere.

Regards,
J
 

Similar threads

Replies
6
Views
10K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 50 ·
2
Replies
50
Views
5K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 9 ·
Replies
9
Views
4K
  • · Replies 10 ·
Replies
10
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 5 ·
Replies
5
Views
4K