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Unread 15-07-2005, 09:30
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Probablility Problem

I ran across this on another forum and we're running in circles trying to figure it out:

Scenario: I have two lines that intersect, both are 8 inches long. (Assume "8 points on the line" ignore the zero->one) The lines intersect at an inch mark.

There are 4 dots distributed along line A, randomly, but always fall on an inch mark (not in between). So at any given inch mark, there is a 50% chance of finding a dot.

There are 2 dot distributed along line B, randomly, but always fall on an inch mark. So at any given inch mark on line B, there is a 25% chance of finding a dot.

How do I calculate the odds of finding a dot where the lines interesect?

Example of the lines:
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