A student who identifies as South Korean & White (MultiRacial) on enrollment forms is counted as a monoracial South Korean student.
A student who identifies as Black & Hispanic & Japanese on enrollment forms is counted as a monoracial Black student.
Black is the category of first resort/ primacy.
White is the category of last resort (among known categories).
In short, some of the university demographic data on how many Black, Hispanic, Filipino, Persian, Indian, Pacific Islander, Native American, & students of other ethnoracial backgrounds may in fact be MultiRacial students who are being misidentified.