I am not knowledgable in race issues, but I can speak about students going to university from schools with lower average grades. A student with BBB (for exampl

I am not knowledgable in race issues, but I can speak about students going to university from schools with lower average grades. A student with BBB (for example) from a bad school will (on average) get a higher final degree score than a student with BBB from a very good school. This (to me) is not a surprise. Therefore universities sometimes offer lower grades to students based on their school, under the expectation the students will do as well at university.