The Following Table Represents Exam Grades from 36 Students in a Statistics

Essay

The following table represents exam grades from 36 students in a statistics class.Construct a pie chart using classes with grades 51-60,61-70,71-80,81-90,and 91-100.
$$\begin{array} { | l | l | l | l | l | l } \hline 60 & 79 & 75 & 84 & 85 & 74 \\\hline \mathbf { 8 1 } & 95 & \mathbf { 8 9 } & 58 & 66 & 98 \\\hline 99 & 99 & 62 & 86 & 85 & 99 \\\hline 79 & 82 & 98 & 72 & 72 & 72 \\\hline 75 & 88 & 86 & 81 & 96 & 86 \\\hline 78 & 91 & 83 & 85 & 92 & 68 \\\hline\end{array}$$