MathsGee Answers is Zero-Rated (You do not need data to access) on: Telkom | Dimension Data | Rain | MWEB
First time here? Checkout the FAQs!
x
MathsGee is Zero-Rated (You do not need data to access) on: Telkom |Dimension Data | Rain | MWEB

0 like 0 dislike
19 views
Are there any guidelines for deciding whether an infinite set is countable or not?
in Mathematics by Diamond (74,866 points) | 19 views

1 Answer

0 like 0 dislike
Best answer

Here is a simple guideline for deciding whether a set is countable or not. As far as applied probability is concerned, this guideline should be sufficient for most cases.

 

  • $\mathbb{N}, \mathbb{Z}, \mathbb{Q}_{1}$ and any of their subsets are countable.
  • Any set containing an interval on the real line such as $[a, b],(a, b],[a, b)$, or $(a, b)$, where $a<b$ is uncountable.
by Diamond (74,866 points)

Related questions

0 like 0 dislike
0 answers
asked Aug 10, 2019 in Mathematics by MathsGee Diamond (74,866 points) | 22 views
0 like 0 dislike
0 answers

MathsGee provides answers to subject-specific educational questions for improved outcomes.



On MathsGee Answers, you can:


1. Ask questions
2. Answer questions
3. Comment on Answers
4. Vote on Questions and Answers
5. Donate to your favourite users

MathsGee Tools

Math Worksheet Generator

Math Algebra Solver

Trigonometry Simulations

Vectors Simulations

Matrix Arithmetic Simulations

Matrix Transformations Simulations

Quadratic Equations Simulations

Probability & Statistics Simulations

PHET Simulations

Visual Statistics

ZeroEd Search Engine

Other Tools

MathsGee ZOOM | eBook