Provide an Appropriate Response $\begin{array} { r r r r r r } 4 & 22 & 22 & 12 & 12 & 19 \\ 17 & 8 & 5 & 13 & 22 & 31 \end{array}$

Multiple Choice

Provide an appropriate response.
-Obtain the population standard deviation, Ϭ, for the given data. Assume that the data represent population data. Round your final answer to one more decimal place than that used for the
Observations.
The number of years of teaching experience is given below for 12 high-school teachers.
$\begin{array} { r r r r r r } 4 & 22 & 22 & 12 & 12 & 19 \\ 17 & 8 & 5 & 13 & 22 & 31 \end{array}$

A) $59.2 \mathrm { yr }$
B) $7.7 \mathrm { yr }$
C) $8.0 \mathrm { yr }$
D) $9.3 \mathrm { yr }$