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Subject: "Drawing matches"     Previous Topic | Next Topic
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Conferences The CTK Exchange Thoughts and Suggestions Topic #97
Reading Topic #97
Alexei
guest
Jan-13-11, 09:05 PM (EST)
 
"Drawing matches"
 
   The page on conditional probability calculates probabilities of drawing the short match. Among other things, there are several fraction divisions that go like this:
1/5 / 5/6 = 1/6
and
1/4 / 4/6 = 1/6

Though the outcomes seem to agree with the meaning of the probabilities calculated, the arithmetic does not.

Any thoughts?

https://www.cut-the-knot.org/Probability/Conditionalprobability.shtml


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alexbadmin
Charter Member
2704 posts
Jan-13-11, 11:44 PM (EST)
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1. "RE: Drawing matches"
In response to message #0
 
   Thank you, Alexei.

I do not know what I was thinking. Rather obviously the probabilities have to be multiplied. I'll need to redo that part.

Thank you again


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alexbadmin
Charter Member
2704 posts
Jan-14-11, 07:53 AM (EST)
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2. "RE: Drawing matches"
In response to message #1
 
   It's back up there.


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