What is the variance of 3,8,4,10,6,2 ?

The variance of 3,8,4,10,6,2 is 9.5

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variance of 3,8,4,10,6,2

variance

3, 8, 4, 10, 6, 2

9.5

Solution steps

Compute the average,

\overset{x}{ˉ} : 5.5

Compute

i = 1 \sum n (x_{i} - \overset{x}{ˉ})^{2} : 47.5

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} : 9.5

9.5

36, 14, 21, 39, 11, 2

25.2, 13.5, 18.5, 34.8

50 n P r 43

l c d

14, 14, 15, 17, 21, 21, 22, 23