This is what the actuaries at the life insurance companies make their livings figuring out. And they better damn well get it right!
Ironically, since people are cheating Mr. Death longer these days, life insurance is one rare instance of a product actually getting cheaper as time goes on.
But it is always amusing to see an underwriter get an application for life insurance in their sweaty little hands and go, "I'm betting 64.3, Betty."
"Ron, you dumbass motherfucker! This guy ain't gonna see 55 alive or I'll eat your desk!"
They have office pools going on you, you know. Good luck to you.