Monday, October 4, 2010

Counter-Intuitive Statistics...

Best example I've seen in a long time:

Back during World War II, the RAF lost a lot of planes to German anti-aircraft fire. So they decided to armor them up. But where to put the armor? The obvious answer was to look at planes that returned from missions, count up all the bullet holes in various places, and then put extra armor in the areas that attracted the most fire.

Obvious but wrong.

Go read all about it.

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