>>106340888
Pic related is only for white women but there's a connection between intelligence, religion, and birthrates. The highest birthrates are in women who are both highly intelligent and very religious. The lowest are also in highly intelligent women but those who are atheist. The lower the woman's intelligence, the less religion matters as their birthrates regress towards the mean.
Note the this is about intelligence, not about degrees and credentials, though there is some correlation between atheist woman and credentials since some level of intelligence is required to obtain them (even if that lessens each year).