For the following frequency distribution (assume the data represent a population), $$\begin{array} { l r }
\text { Class } & \text { Frequency } \
70 - 79 & 5 \
80 - 89 & 9 \
90 - 99 & 11 \
100 - 109 & 9 \
110 - 119 & 6
\end{array}$$
a.
Compute the mean.
b.
Compute the standard deviation.

Question

For the following frequency distribution (assume the data represent a population), $$\begin{array} { l r } 
\text { Class } & \text { Frequency } \
70 - 79 & 5 \
80 - 89 & 9 \
90 - 99 & 11 \
100 - 109 & 9 \
110 - 119 & 6
\end{array}$$ ​ 
a.
Compute the mean.
b.
Compute the standard deviation.

Quizplus · Accepted Answer

The Answer of For the following frequency distribution (assume the data represent a population), $$\begin{array} { l r } 
\text { Class } & \text { Frequency } \
70 - 79 & 5 \
80 - 89 & 9 \
90 - 99 & 11 \
100 - 109 & 9 \
110 - 119 & 6
\end{array}$$ ​ 
a.
Compute the mean.
b.
Compute the standard deviation.

For the Following Frequency Distribution (Assume the Data Represent a Population)