Originally Posted by Verbatim
I'm looking for what mileage pumps that fail, will fail at. There's a qualifier that the pumps fail in the first place.
If you were trying to find out what age people pass away at, would you survey every single person who is still alive? No, that's another survey.
I understand, but you were complaining about the number of responses, and I was providing an explanation for that. Your poll won't give you any sense of the failure rate at any given mileage.
As for polling dead people, I think you are likely to get even lower response rates.