$$\begin{array}{l}
\begin{array} { | l | l | }
\hline \text { Class Boundaries } & \text { Frequencies } \
\hline 13.5 - 18.5 & 4 \
\hline 18.5 - 23.5 & 9 \
\hline 23.5 - 28.5 & 12 \
\hline 28.5 - 33.5 & 15 \
\hline 33.5 - 38.5 & 17 \
\hline
\end{array}\
\text { Given the following frequency distribution, find the mean. }
\end{array}$$
A) 28.8
B) 12.6
C) 26.3
D) 31.3

Question

$$\begin{array}{l}
\begin{array} { | l | l | } 
\hline \text { Class Boundaries } & \text { Frequencies } \
\hline 13.5 - 18.5 & 4 \
\hline 18.5 - 23.5 & 9 \
\hline 23.5 - 28.5 & 12 \
\hline 28.5 - 33.5 & 15 \
\hline 33.5 - 38.5 & 17 \
\hline
\end{array}\
\text { Given the following frequency distribution, find the mean. }
\end{array}$$
A) 28.8
B) 12.6
C) 26.3
D) 31.3

Quizplus · Accepted Answer

To find the mean, calculate the midpoint for each class, multiply by the frequency, sum these products, and divide by the total frequency. The mean is approximately 28.8.

A) 288 B) 12

A) 288
B) 12