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#1 2011-12-18 00:40:25
- juantheron
- Member
- Registered: 2011-10-19
- Posts: 312
divisability probability
3 distinct integers are selected at random from 1 to 20. find the probability that their sum is divisible by 5.
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#2 2011-12-18 01:19:07
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: divisability probability
hI juantheron;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3 2011-12-18 03:08:25
- juantheron
- Member
- Registered: 2011-10-19
- Posts: 312
Re: divisability probability
thank bobbym
but how can you get this
plz explain here
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#4 2011-12-18 03:57:32
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: divisability probability
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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Pages: 1