Find the variance for the given data. Round your answer to one more decimal place than the original data.
-Jeanne is currently taking college zoology. The instructor often gives quizzes. On the past five quizzes, Jeanne got the following scores: $$\begin{array} { l l l l l }
5 & 3 & 16 & 1 & 20
\end{array}$$
A) 88.4
B) 71.4
C) 71.5
D) 57.2

Question

Find the variance for the given data. Round your answer to one more decimal place than the original data.
-Jeanne is currently taking college zoology. The instructor often gives quizzes. On the past five quizzes, Jeanne got the following scores: $$\begin{array} { l l l l l } 
5 & 3 & 16 & 1 & 20
\end{array}$$
A) 88.4
B) 71.4
C) 71.5
D) 57.2

Quizplus · Accepted Answer

The variance is 71.5. The mean is 8.2. The variance is the average of the squared differences from the mean. The squared differences are:(5-8.2)^2 = 10.24(3-8.2)^2 = 27.04(16-8.2)^2 = 58.88(1-8.2)^2 = 51.84(20-8.2)^2 = 144.48The average of these squared differences is 71.5.

Find the Variance for the Given Data 5316120\begin{array} { l l l l l } 5 & 3 & 16 & 1 & 20\end{array}5​3​16​1​20​

Find the Variance for the Given Data $\begin{array} { l l l l l } 5 & 3 & 16 & 1 & 20\end{array}$