HN2new | past | comments | ask | show | jobs | submitlogin

Wow so 4.6 million people seriously injured in car accidents in the US in 2016. Given an 80 year average lifespan you are statistically at 110% risk of serious lifetime injury using the most basic statistics.

4.6M / 330M = yearly risk 1.39% x80 years = 111.5% chance of serious injury

I'm sure that includes things like whiplash though.



Probably more correct to do one minus the chance of no injuries.

So the chance of no injury is (1 - 0.0139) ^ 80 = 32.6%, making the chance of serious injury 67.4% over 80 years.


That’s not how probability works - the probability of getting heads when you flip a coin twice is not 2x50 = 100%.




Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: