It’s representative of the members of the party, which is still OK in a way. The other way around is to take a random sample among that, which should give the same but also maybe half and half, with half going to the global population.
It’s representative of the members of the party, which is still OK in a way. The other way around is to take a random sample among that, which should give the same but also maybe half and half, with half going to the global population.