Find the variance for the given data. Round your answer to one more decimal place than the original data.
-$$\begin{array} { l l l l l }
19 & 5 & 20 & 6 & 2
\end{array}$$
A) 71.3
B) 93.8
C) 57.0
D) 71.2

Question

Find the variance for the given data. Round your answer to one more decimal place than the original data.
-$$\begin{array} { l l l l l } 
19 & 5 & 20 & 6 & 2
\end{array}$$
A) 71.3
B) 93.8
C) 57.0
D) 71.2

Quizplus · Accepted Answer

To find the variance, first calculate the mean: (19+5+20+6+2)/5 = 10.4. Then, find the squared differences from the mean: (19-10.4)², (5-10.4)², (20-10.4)², (6-10.4)², (2-10.4)². These are 73.96, 29.16, 92.16, 19.36, and 70.56. The variance is the average of these squared differences: (73.96+29.16+92.16+19.36+70.56)/5 = 71.24, rounded to 71.3.

Find the Variance for the Given Data 1952062\begin{array} { l l l l l } 19 & 5 & 20 & 6 & 2\end{array}19​5​20​6​2​

Find the Variance for the Given Data $\begin{array} { l l l l l } 19 & 5 & 20 & 6 & 2\end{array}$