She probably took her exams. She has a degree in INTERNATIONAL STUDIES, not Economics. She took a few economics courses. So did I (micro & macro). I have a BS in Engineering and a minor in marketing.
It is not not like so took Integral Eguations or any other higher level math courses. International Relations is one of those degrees similar to Women’s Studies. This is why she was a bartender after graduating from a $60K/year school.
Ocasio-Cortez graduated cum laude[26] from Boston University in 2011 with a Bachelor of Arts degree in both international relations and economics.[27][28][21][29]