Request for you

[mario]

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(10-14-2009 08:21 PM)Frank Wrote:  Had you said this:- =HYPGEOMDIST(2,2,7,49) in Excel, for the probability to hit 2 numbers from 2


Frank not hit 2 from 2, only 1 for 2! just 1 number from a pair not both numbers!
And I said about the process of obtained probability in 2 steps using the contrare phenomen:
- =HYPGEOMDIST(0,2,7,49) in Excel not =HYPGEOMDIST(2,2,7,49) for hit 0 from 2 numbers if in 49 drawn 7 = 0.7321
- to repeat this phenomen in 4 consecutive draws is
=BINOMDIST(4,4,0.7321,FALSE)= 0.28

So for a favorable process have probability 1-0.28=0.72!! so 72% for a win (at least a number for pair)!

What is it wrong? You illustrated another situation with hit 2 from 2 so whole pair!
I don't need the whole pair, only one and alone number for pair!!

Frank, very interesting but you analyzed a pair or 2 from 2 and I analise 1 from 2 not all pair, only one number for it!! Where in this history of draws you must wait hundred of draws for a one good numbers from a pair???
So I think that probability is good? I'm wrong?