Find the variance for the given sample data. Round your answer to one more decimal place than the original data. $$\begin{array} { l l l l l }
7 & 7 & 2 & 5 & 1
\end{array}$$
A) 11.8
B) 6.2
C) 7.7
D) 7.8

Question

Find the variance for the given sample data. Round your answer to one more decimal place than the original data. $$\begin{array} { l l l l l } 
7 & 7 & 2 & 5 & 1
\end{array}$$
A) 11.8
B) 6.2
C) 7.7
D) 7.8

Quizplus · Accepted Answer

The variance is 7.8. The mean is 4.4. The variance is the average of the squared differences from the mean. The squared differences are 9.68, 9.68, 5.12, 0.64, and 12.96. The average of these is 7.8.

Find the Variance for the Given Sample Data 77251\begin{array} { l l l l l } 7 & 7 & 2 & 5 & 1\end{array}7​7​2​5​1​

Find the Variance for the Given Sample Data $\begin{array} { l l l l l } 7 & 7 & 2 & 5 & 1\end{array}$