What are the odds?

by on Jul.19, 2011, under Uncategorized

I often hear of People talking about it must be a miracle because of the Odds of an event occurring,
or the Odds are so high that it can’t happen.

I don’t think people really understand that just because the “odds” are high that doesn’t mean that it can’t happen.
Example, what are the odds of you existing?

Well given that the (low estimate) sperm count of an average event is around 39,000,000

The Odds of that one event where your parents came together and created you is 1 in 39,000,000.  If any other sperm fertilized the egg, you wouldn’t be you as it would have been a different DNA pattern.


Same for both of your parents (1 in 39,000,000) for each of them (1 in 1.521E+15)

And same for their parents (1 in 39,000,000) for each of them (all 4) (1 in 2.31344E+30)

And if we only go back 3 generations we’re up to 1 in 5.35201E+60.


And remember these are overly low, assuming only 1 attempt for each pregnancy, and that there wasn’t any chance of any of your ancestors meeting up with anyone else.

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