You’re at a blackjack table in Las Vegas.
The guy sitting next to you has a 10 of hearts and 7 of spades. Now, everyone knows when you have 17 that you stand, but this guy asks the dealer for a hit.
The dealer flips over a 4, and so the guy gets 21. Blackjack!
Nice hit, huh?
Well, the casino loves gamblers like him, because if someone always hits on 17 they’ll lose money. The probability of...