What is the variance of 8,10,5,10,8,6 ?

The variance of 8,10,5,10,8,6 is 4.16666…

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variance of 8,10,5,10,8,6

variance

8, 10, 5, 10, 8, 6

4.16666 \dots

Solution steps

Compute the average,

\overset{x}{ˉ} : 7.83333 \dots

Compute

i = 1 \sum n (x_{i} - \overset{x}{ˉ})^{2} : 20.83333 \dots

Compute the number of terms in the data set:

n = 6

Compute

Va r (X) = i = 1 \sum n \frac{( x _{i} - x ˉ ) ^{2}}{n - 1} : 4.16666 \dots

4.16666 \dots

7 P 6

6, 13, 14, 14, 17, 21, 22, 26, 27, 29, 33, 33, 36

97, 81, 58, 66, 83, 58, 36, 58, 78

18 C 5

9, 6, 9, 3, 5, 9, 6, 9, 4, 3, 9, 9, 5, 9, 6, 7, 7, 8, 8, 3

What is the variance of 8,10,5,10,8,6 ?
The variance of 8,10,5,10,8,6 is 4.16666…