I don’t think it’s true that black women are the most educated group. I think what you might be thinking of is “Among Black students in higher education, women are more likely than men to earn degrees: Black women get 64.1% of bachelor’s degrees, 71.5% of master’s degrees and 65.9%of doctoral, medical, and dental degrees”. However, “The number of white women (39%) getting an associate or bachelor’s degree by the age of 29 is nearly twice as high as for Black women (21%) and Latinas (20%).” From https://www.aauw.org/resources/article/fast-facts-woc-higher-ed/
I don’t think it’s true that black women are the most educated group. I think what you might be thinking of is “Among Black students in higher education, women are more likely than men to earn degrees: Black women get 64.1% of bachelor’s degrees, 71.5% of master’s degrees and 65.9%of doctoral, medical, and dental degrees”. However, “The number of white women (39%) getting an associate or bachelor’s degree by the age of 29 is nearly twice as high as for Black women (21%) and Latinas (20%).” From https://www.aauw.org/resources/article/fast-facts-woc-higher-ed/