Surprisingly often I find myself thinking about poker in everyday life (even while not playing poker, that is). And surprisingly often I find something I learned in poker is also applicable in life outside the game. In this case, the concept of variance comes to mind. Basically that values (for instance number of deaths of celebrities) are spread out. Sometimes there are more, and sometimes there are less. And that's just how it is, it doesn't automatically mean there's a trend change either way.

Lots of pages out there to read about it, here's one that might give more insight than my comment: http://www.thepokerbank.com/strategy/other/variance/