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09 Nov 09
12:58
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Date Joined:
30 Mar 07
Am here a work and teying to resolve following question?
You have 12 numbers one to twelve. What are the odds of predicting correctly first six numbes drawn from hat? And equation to work it out?
You have 12 numbers one to twelve. What are the odds of predicting correctly first six numbes drawn from hat? And equation to work it out?
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Replies: 28
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6/12 x 5/12 x 4/12 x 3/12 x 2/12 x 1/12
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or 1/12 x 1/11 x 1/10 x 1/9 x 1/8 x 1/7 if you are only picking 1 number before each drawing , than 6 at the start
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12x11x10x9x8x7x6
________________ 6x5x4x3x2x1 |
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Or 6/12 x 5/11 x 4/10 x 3/9 x 2/8 x 1/7, depends.
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1st reply should read 6/12 x 5/11 x 4/10 x 3/9 x 2/8 x 1/7 but i think my other post is what you are after
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dont think so
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no 6 in my top line sorry
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i agree with oval man my other work mate does not
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300,000/1 ish
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Ken has given my answer in an easier form to understand
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so it works out at 5,544 to one
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where am i going wrong, i make it 324,000 / 1
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Do you have to get the correct order or just which 6 of the 12 will be first ones out?
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What type of hat?...
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no real order. just six numbers tomatch with your six numbers
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ffs, with all the figures people on here you would think someone would know it.
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Ah, in that case it's (1/2 x 5/11 x 2/5 x 1/3 x 1/7) = 1/161
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oops - 1/231
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the answer is 5,544 to one
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Well I've just drawn 231 times and it only happened once.
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If order doesn't matter I'd be inclined to think that as odds of any individual number being drawn out in first 6 is evens, its a 6 runner acca all at Evens, ie 63/1. Can't be that simple tho, can it?
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n!/ r! (n-r)!
where: n is the number of balls r is the number of balls to be picked so the lottery would be calculated like this: 49!/ 6! (49-6)! if your question is supposed to work like a lottery the answer is : 12!/ 6!6! |
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its ok i have the answer thanks
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Fack it, buy a scratchcard.
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evski the daddy
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12!/6!
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no no no
12!/6!² |
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I TRUST ITS A SMOKE FREE OFFICE?
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