It's not that many minorities...
@Dafunkdoc_Unlimited already broke it down.
It's Hispanics, Blacks, Natives, Asians and Pacific Islanders.
(f) Definitions
As used in this section, the term-
(1) "minority" means any individual who is a citizen of the United States and who is Asian American, Native Hawaiian, a Pacific Islander, African American, Hispanic, Puerto Rican, Native American, or an Alaska Native;
(2) "minority business enterprise" means a firm, corporation, association, or partnership which is at least 50 percent owned or controlled by a minority or group of minorities; and
(3) "minority educational institution" means an educational institution with an enrollment in which a substantial proportion (as determined by the Secretary) of the students are minorities