# Number of Arrangements of 0s and 1s

**URL:** <https://forum.kirupa.com/t/number-of-arrangements-of-0s-and-1s/187430>\
**Category:** random\
**Created:** [April 29, 2006, 2:46am UTC](https://forum.kirupa.com/t/number-of-arrangements-of-0s-and-1s/187430 "2006-04-29T02:46:34Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![hsadan](https://avatars.discourse-cdn.com/v4/letter/h/7bcc69/32.png) [@hsadan](https://forum.kirupa.com/u/hsadan)\
**Post date:** [April 29, 2006, 2:46am UTC](https://forum.kirupa.com/t/number-of-arrangements-of-0s-and-1s/187430/1 "2006-04-29T02:46:34Z")

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How do you find how many arrangements of 0s and 1s there are, given the number of digits?

for example, if there are to be 3 digits, there are 8 arrangements:  
000  
001  
010  
100  
101  
011  
110  
111

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**Author:** ![anon1712571](https://avatars.discourse-cdn.com/v4/letter/a/9dc877/32.png) [@anon1712571](https://forum.kirupa.com/u/anon1712571)\
**Post date:** [May 1, 2006, 1:08am UTC](https://forum.kirupa.com/t/number-of-arrangements-of-0s-and-1s/187430/2 "2006-05-01T01:08:03Z")

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Ah crap - I’m doing this in school again- its all that probability shizzle… ☹

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**Author:** ![hsadan](https://avatars.discourse-cdn.com/v4/letter/h/7bcc69/32.png) [@hsadan](https://forum.kirupa.com/u/hsadan)\
**Post date:** [May 1, 2006, 6:17am UTC](https://forum.kirupa.com/t/number-of-arrangements-of-0s-and-1s/187430/3 "2006-05-01T06:17:43Z")

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> [@thelonephoenix](#):
>
> Errrrm… My friend… Since you’re doing engineering (which I don’t believe since you don’t seem to able to figure such a simple thing out), let me just brush you up on a little concept here…
> 
> **Arrangement = Permutation**
> 
> A permutation formula may/may not require the use of factorials since it is plainly the number of arrangements possible and nothing else. :thumb2:
> 
> Study harder! 😛

ok well I wasn’t specific enough…

my point was that it’s not simply the calculator P or C function like templarian mentioned.

I’m refering to this post:

> [@Templarian](#):
>
> on a graphic calc you can use the math\>prob\>then the nCp thingy or something like that.

And, I never said that permutations had to involve using factorials. Study english harder!  
[whisper]I’m sorry if that’s too insulting, I usually refrain from shooting others down unless they blatantly and unjustly do so to me first.[/whisper]

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**Author:** ![Phenex](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/phenex/32/686_2.png) [@Phenex](https://forum.kirupa.com/u/Phenex)\
**Post date:** [May 1, 2006, 7:51am UTC](https://forum.kirupa.com/t/number-of-arrangements-of-0s-and-1s/187430/4 "2006-05-01T07:51:39Z")

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Errrm… Not insulted in anyway… Don’t worry…

Plus, read your own post… You’ll know what I’m talking about.

Plus if you are having a problem figuring out a solution to such a basic question, you will have a whole lotta problems when the whole stochastic process and probability distributions systems kick in 😉

Just a reminder. Everywhere you go after this, probability is going to literally haunt you if you move ahead in a science field. Probability is quite interesting… Only thing, you’ll have to put your brains into it!

Although, I agree, mathematically solving probability questions is a major drag. Probability theory is much much better!

Loving it at college 😉

[ot]Some people are too afraid of going for a roller-coaster ride. Do you know? The probability of someone dying in some sorta freak-roller-coaster-accident is far less than someone dying while playing billiards, getting hit by a ball?

Exhibits an ironic nature doesn’t it 😛  
[/ot]