It’s always the implied level of simplicity, it ALWAYS has to do with the implications that are made.
Suzie had a baby. Suzie’s baby is a boy. Suzie is pregnant, there is a 50% chance that the next child is a boy.
Suzie and fred have 2 children. Their first child is a boy. Their second child has a 50% chance of being a boy.
Suzie and fred have 2 children. Today they are at school talking with the principle because Bobby (one of their children) got in a fight. Betty the babysitter is babysitting a child that is 2/3 chance a girl and 1/3 chance a boy.
Now start bringing in more variables.
makes up an arbitrary statistic to prove a point
98% of boys that get in fights at school have at least one brother
By nature of the fact that on a given day they have to go through this experience, the odds are drastically placed in the favor of it being a boy.
Double or Nothing.
you bet 5 dollars.
you have a 50% chance to have the oppurtunity to leave the table with 10 dollars.
25% to leave with 20
12.5 : 40
6.25 : 80
if you now have 80 dollars in the pot. You have a 50% chance to have the oppurtunity to walk away with 160 dollars.
A man sets a deck of cards in front of you and tells you to pick a card out of the deck. You shuffle the deck fervantly until any prearranged stack is statistically arbitrary. And select a card. He then tells you, He will reward you with $100 dollars if you have the Ace of Spades, But requires a quarter if you do not have the ace of spades, to satisfy your curiousity you agree. He, then looking at the stack, face down, begins turning cards over one by one, each, not the ace of of spades, until he reaches the final card. And in this moment of anticipation he offers you a chance to switch. You had figured there was a 51/52 chance it was in that stack so the fact remains that it is a 1/52 chance that it is the card you hold face down. However the chance is that the card on the bottom being that card is 1/52 as well, you know it’s not the 50/52 that is in the discard pile, rather it is either the card you hold in your hand or the card facing down. 1/52 or 1/52 more appropriately 1:1 or 50%. You have thought this through well. and know that it makes no difference whether it is the card you hold face down or the card he holds face down. You confidently say, “I’ll stay with what I have”. You turn over your card revealing a 6 of hearts and He his revealing a 5 of clubs. Which actually played statistics quite well given your situation, as everytime he turned over a card that wasnt the ace of spades the chances of it not being in the deck increased by a factor of 1/52. Which should have been a dead giveway in the first place given that the man just offered you money 400:1. About this time you are questioning why he bothered to do this and he runs off, your wallet is missing.
My point is you will have a difficult time attributing human nature to statistics. There are always hundreds of assumptions. Who is there to prove there is anything but a goat behind all three doors? How do you know they aren’t moving them? Who’s to say all gameshows aren’t rigged? and Why would the host care if you win or lose, he is just supposed to make it entertaining, I dont think he gets to keep the ferrari if you lose. (I would hazard a guess that ratings go up when they are given away, and the shows dont pay full price for their gifts.)
The point of statistics was never to consider for human nature, you could endlessly throw curve balls at any scenario that involves another person making a choice based on knowledge of the result.