In message . 170,
Adrian writes

Driver A does 5,000 miles per year, and gets one speeding ticket
every three years.

Driver B does 50,000 miles per year, and gets one speeding ticket per
year.

Who gets nicked with greater frequency?

Not that simple.

Oh, OK. In that case, we'll ignore all references to the high mileage you
do, because it's not that simple.

You have to consider the kind of driving they do, I suppose. Someone
doing all their mileage on urban roads is going to pass a lot more
cameras than someone doing the same mileage on motorways. Same for
accident statistics, in fact I wonder how the per mile accident rate for
trucks looks if you correct for the proportion of miles driven on
inherently very low risk roads.

--
Steve Walker