(other than the fact that the latter make up a larger proportion of the current population).
That does change things… Post-1930 saw an incredible expansion of college going, democratizing to a large fraction of the population. The enrolled population is going to change since it was very far from a random sample in the first place.
That does change things… Post-1930 saw an incredible expansion of college going, democratizing to a large fraction of the population. The enrolled population is going to change since it was very far from a random sample in the first place.