The first, obviously, the probability of walking away with the £1 billion on the second is only 25% (not that it'd be worth risking it for even 50%).
How is the probability 25%? There's two outcomes which I'm pretty sure means 50% chance.
I'd go green.
There are four possible outcomes with the green button
1) You win the £1 billion and don't get killed
2) You win the £1 billion and get killed
3) You don't win the £1 billion and don't get killed
4) You don't win the £1 billion and get killed
All four outcomes have a probability of 0.5*0.5 = 0.25/25% of occurring and since you get killed on 2) and 4) and won't win anything on 3) there's only a 25% chance of really winning the money.
EDIT: To be honest, a more interesting discussion is the same situation, but with a 1% chance of death as opposed to 50%. Since you either have to be stupid or suicidal to go with green, whereas a 1% chance of death would actually provoke a more interesting discussion.
What about being paid $1,000,000,000 to have 'all inputs' sex with either:
A. a morbidly obese 50 year old woman (like that rich Australian lady)
or
B. a very high quality PRE-op transsexual.
What about being paid $1,000,000,000 to have 'all inputs' sex with either:
A. a morbidly obese 50 year old woman (like that rich Australian lady)
or
B. a very high quality PRE-op transsexual.
There are four possible outcomes with the green button
1) You win the £1 billion and don't get killed
2) You win the £1 billion and get killed
3) You don't win the £1 billion and don't get killed
4) You don't win the £1 billion and get killed
All four outcomes have a probability of 0.5*0.5 = 0.25/25% of occurring and since you get killed on 2) and 4) and won't win anything on 3) there's only a 25% chance of really winning the money.
EDIT: To be honest, a more interesting discussion is the same situation, but with a 1% chance of death as opposed to 50%. Since you either have to be stupid or suicidal to go with green, whereas a 1% chance of death would actually provoke a more interesting discussion.
What about being paid $1,000,000,000 to have 'all inputs' sex with either:
A. a morbidly obese 50 year old woman (like that rich Australian lady)
or
B. a very high quality PRE-op transsexual.
Seriously kwerk, for a billion, I'd do both.
There are four possible outcomes with the green button
1) You win the £1 billion and don't get killed
2) You win the £1 billion and get killed
3) You don't win the £1 billion and don't get killed
4) You don't win the £1 billion and get killed
All four outcomes have a probability of 0.5*0.5 = 0.25/25% of occurring and since you get killed on 2) and 4) and won't win anything on 3) there's only a 25% chance of really winning the money.
EDIT: To be honest, a more interesting discussion is the same situation, but with a 1% chance of death as opposed to 50%. Since you either have to be stupid or suicidal to go with green, whereas a 1% chance of death would actually provoke a more interesting discussion.