The Monty Hall Problem
Want to get a room full of engineers into a frenzy? Show them the following video:
Some of the people in here have been fighting about the probability being 66% for the last 15 minutes. One guy even pulled out a sheet of paper so he could try to prove how the video was wrong using his insane math skillz. Another one is legitimately angry over the solution and no longer wants to discuss it.
I’ll tell you… a life among math nerds is very different from the world that you regular people enjoy.
It has been about 2 hours since this video was unleashed. There is still fighting.
“WHAT IF THE HOST OPENS THE DOOR WITH THE CAR?”
“He won’t… that’s the point..”
“AHA But what if he does”
“…. but he doesn’t”
“Well still. WHEN HE CLOSES ONE DOOR, YOU ARE LEFT WITH TWO MEANING IT IS 50/50”
“Did you watch the video?”
“THE VIDEO IS WRONG”
There is some twitching going on in here. And I know, I KNOW, that at least 50% of these guys are going to go home to their wives to talk about it. Their wives are probably not math-crazy and will just nod in agreement to anything because it’s easier to avoid a fight by saying “uh-huh” rather than “stop talking to me because I don’t care AT ALL”. The men will come back tomorrow morning with an inflated ego, and I will hate each and every one of their wives for this. Well, except for the one that makes biscotti because that stuff is delicious. As far as I’m concerned, she can never do wrong.
The fighting will again commence tomorrow morning. And that, my friends, is why I arrive late.