Grades
Source:
June 27, 2011
percent
Problem Statement
The grading scale shown is used at Jones Junior High. The fifteen scores in Mr. Freeman's class were:
\begin{tabular}[t]{lllllllll}89, & 72, & 54, & 97, & 77, & 92, & 85, & 74, & 75,\\ 63, & 84, & 78, & 71, & 80, & 90. & & &\\ \end{tabular}
In Mr. Freeman's class, what percent of the students received a grade of C? \boxed{\begin{tabular}[t]{cc}A: & 93-100\\ B: & 85-92\\ C: & 75-84\\ D: & 70-74\\ F: & 0-69\end{tabular}}