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Valeri Galtsev wrote:

[snip]
> Even twin brothers are unlikely to die
> during the same week or Month. This one is between fundamental assumptions
> statistics is based on.
> 

And yet I knew two identical twin brothers that did die at the same time! 
They were together in the same car when they were obliterated by an out of 
control jack-knifed tractor trailer truck. Was a long time ago, but it 
happened.

Just because probability may, or may not, predict a thing does not mean it 
can or cannot happen.

-Mike