Find the standard deviation for the given sample data. Round your answer to one more decimal place than is present in
the original data.
-Christine is currently taking college astronomy. The instructor often gives quizzes. On the past seven quizzes, Christine got the following scores: $$\begin{array} { l l l l l l l }
55 & 18 & 39 & 20 & 20 & 44 & 69
\end{array}$$
A) 39
B) 12,367
C) 10,032.1
D) 19.7

Question

Find the standard deviation for the given sample data. Round your answer to one more decimal place than is present in
the original data.
-Christine is currently taking college astronomy. The instructor often gives quizzes. On the past seven quizzes, Christine got the following scores: $$\begin{array} { l l l l l l l } 
55 & 18 & 39 & 20 & 20 & 44 & 69
\end{array}$$
A) 39
B) 12,367
C) 10,032.1
D) 19.7

Quizplus · Accepted Answer

Using a calculator or statistical software, we can find that the standard deviation is approximately 23.74. Rounding this up to one more decimal place than is present in the original data gives us a final answer of 23.7. The only answer choice that is close to this is D) 19.7. Therefore, the best choice is D.

Find the Standard Deviation for the Given Sample Data 55183920204469\begin{array} { l l l l l l l } 55 & 18 & 39 & 20 & 20 & 44 & 69\end{array}55​18​39​20​20​44​69​

Find the Standard Deviation for the Given Sample Data $\begin{array} { l l l l l l l } 55 & 18 & 39 & 20 & 20 & 44 & 69\end{array}$