if we divide each of those percentages by 50, we should come up with the odds of dying in a given vehicle per year,
I’m being very nitpicky but this isn’t quite how it works, if you have a 90% chance of survival one year, you’d have 0.9^2 = 0.81= 81% chance of surviving two years in a row. With that in mind, the odds of dying should be relative to the fiftieth root of surviving fifty years, which gives:
Motorcycle: 0.478%
Car: 0.151%
Ferry: 0.065%
Amtrak: 0.0086%
Airplane: 0.0014%
Without additional decimals it’s hard to see the change for the really small numbers but it doesn’t make much of a difference in reality.
I’m being very nitpicky but this isn’t quite how it works, if you have a 90% chance of survival one year, you’d have 0.9^2 = 0.81= 81% chance of surviving two years in a row. With that in mind, the odds of dying should be relative to the fiftieth root of surviving fifty years, which gives:
Without additional decimals it’s hard to see the change for the really small numbers but it doesn’t make much of a difference in reality.