Subject:
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Re: Dumb question, in all probability
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Newsgroups:
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lugnet.off-topic.geek
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Date:
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Wed, 24 Mar 2004 19:40:39 GMT
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Viewed:
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918 times
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In lugnet.off-topic.geek, Larry Pieniazek wrote:
> In lugnet.off-topic.geek, Dave Schuler wrote:
>
> > I was on the right track until this step. Why are the BBBBB and WWWWW results
> > added together?
>
> Because out of all the possible outcomes (which together must sum to 1.0000, by
> definition) those are the two outcomes that match your description (all one
> color)... none of the other outcomes (BBBBW, BBBWB, BBBWW, etc etc etc ... keep
> enumerating on through to WWWBB WWWBW WWWWB) match your all one color desired.
> So if you have multiple outcomes that fit the description, and there is no
> dependence among them, you can add them.
Ah! Now I get it, I think. So if the question is "What are the chances of
drawing all white?" then the answer is 0.028142247%, but if the question is (as
I stated it) "What are the chances of drawing all one color?" then the all-white
chance is doubled to 5.5%
Thanks for the answer and for the follow-up!
Dave!
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Message has 1 Reply:
Message is in Reply To:
 | | Re: Dumb question, in all probability
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| (...) Because out of all the possible outcomes (which together must sum to 1.0000, by definition) those are the two outcomes that match your description (all one color)... none of the other outcomes (BBBBW, BBBWB, BBBWW, etc etc etc ... keep (...) (21 years ago, 24-Mar-04, to lugnet.off-topic.geek)
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