On Sun, Mar 09, 2003 at 11:49:34AM -0600, wayne wrote:
If you find 5 independent tests that each reduce the spam by 20%, when
combined you will have reduced spam by 99.968%.
If a test blocks 20% of spam, it will let 80% get through.
So a pipe of 5 such tests will let 0.8 ^ 5 = 0.32768 = 33%
through. That pipe will block only 66%.
Hadmut
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