this post was submitted on 22 Nov 2024
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A sample of 8 million cars is more than enough to be representative.
.... sufficiently random ...
Since they just use the 8m for the normalisation it'd be interesting to know how sensitive the rankings are if they assumed some bias. Or maybe even just swap around some normalisation factors and see how robust the ranking is.
I guess they do have near complete data on the deaths, and pretty good data on the population of registered vehicles.
The data on that is all there. Records like car fatalities are collected mainly through law enforcement reports and states have registration numbers. But the question is, how centralized is the data? City, county, state, or federal? There is a lot of data that simply isn't required to be collected to a central agency to keep track of.