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#1 2006-11-15 07:06:58
- xtc
- Guest
Can Anyone Help Me With This Problem?
I HAVE FORTY FIVE NUMBERS (1 TO 45) IF I HAVE TO USE FIVE OF THOSE NUMBERS
(EG; 2 - 8 - 15 - 22- 39)
HOW MANY DIFFERENT SETS OF FIVE ARE THERE IN ORDER TO ACHIVE ALL VARIATIONS POSSIBLE?
HELP PLEASE!!
#2 2006-11-15 07:55:54
- mathsyperson
- Moderator
- Registered: 2005-06-22
- Posts: 4,900
Re: Can Anyone Help Me With This Problem?
This needs us to use the binomial distribution. There are 45C5 (or, if you prefer, 45!/[5!*(45-5)!]) ways of choosing 5 numbers from 45 options, and my calculator says that that is 1,221,759.
Why did the vector cross the road?
It wanted to be normal.
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#3 2006-11-15 09:44:30
- xtc
- Guest
Re: Can Anyone Help Me With This Problem?
Are you sure ?
#4 2006-11-15 10:23:08
- pi man
- Member
- Registered: 2006-07-06
- Posts: 251
Re: Can Anyone Help Me With This Problem?
Looks right to me.
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#5 2006-11-16 00:40:04
- xtc
- Guest
Re: Can Anyone Help Me With This Problem?
thx allot your a gr8 help
#6 2006-11-17 05:42:50
- John E. Franklin
- Member
- Registered: 2005-08-29
- Posts: 3,588
Re: Can Anyone Help Me With This Problem?
Do they have to be in ascending order?
igloo myrtilles fourmis
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