$$\begin{array}{l}
\text { Approximate the population standard deviation given the following frequency distributior }\
\begin{array} { c c }
\hline \text { Class } & \text { Frequency } \
\hline 0 - 9 & 11 \
10 - 19 & 13 \
20 - 29 & 19 \
30 - 39 & 12 \
40 - 49 & 14 \
\hline
\end{array}
\end{array}$$
A) 183.3
B) 180.6
C) 13.4
D) 13.5

Question

$$\begin{array}{l}
\text { Approximate the population standard deviation given the following frequency distributior }\
\begin{array} { c c } 
\hline \text { Class } & \text { Frequency } \
\hline 0 - 9 & 11 \
10 - 19 & 13 \
20 - 29 & 19 \
30 - 39 & 12 \
40 - 49 & 14 \
\hline
\end{array}
\end{array}$$
A) 183.3
B) 180.6
C) 13.4
D) 13.5

Quizplus · Accepted Answer

The population standard deviation is calculated using the formula for grouped data. After calculating the mean and using the midpoints of the classes, the standard deviation is approximately 13.4.

A) 1833 B) 180

A) 1833
B) 180