Hypothetically speaking, if your death would save the life of one or more complete strangers that you know nothing about, how many people would need to be saved (if any) in order for you to give up your own life?
EDIT: Your death would be painless and instantaneous.
The situation would have to be rather intentional. Like I’m in a room next to a room with the other people and the fact that my death saves them is an absolute beyond questioning. Ideally I’d also be able to see them.
In that situation probably just 2.
I don’t think this can be extrapolated to any possible real world scenario.