A) 766
B) 72

Multiple Choice

$$\begin{array}{l}\begin{array} { | l | l | l | } \hline \text { Grade } & \text { Class Boundaries } & \text { Frequency } \\\hline \mathrm { A } & 89.5 - 99.5 & 4 \\\hline \mathrm { B } & 79.5 - 89.5 & 7 \\\hline \mathrm { C } & 69.5 - 79.5 & 11 \\\hline \mathrm { D } & 59.5 - 69.5 & 3 \\\hline \mathrm { F } & 49.5 - 59.5 & 3 \\\hline\end{array}\\\text { For the table below, calculate the mean. }\end{array}$$

A) 76.6
B) 72.6
C) 81.6
D) 83.6