So nearly half that failed were minorities - isn't that the definition of MINORITY!!! If you add up all the "non-whites" (cuban, hispanic, black etc) you probably get exactly "nearly half" of the student population being "minorities". Ergo, statistically speaking, the failure rate was equal across the board.
You bring up an interesting point. What percentage of Florida public school students are minorties? Private schools change the numbers as does home schooling. In Escambia county, which has a black population of 20%, the proportion of black public school students is 33%. If you throw in Hispanics, Asians, and American Indians, "nearly half" of the students are minority students.