What is the variance of 1,9,4,12,13,13 ?

The variance of 1,9,4,12,13,13 is 25.86666…

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variance of 1,9,4,12,13,13

variance

1, 9, 4, 12, 13, 13

25.86666 \dots

Solution steps

Compute the average,

\overset{x}{ˉ} : 8.66666 \dots

Compute

i = 1 \sum n (x_{i} - \overset{x}{ˉ})^{2} : 129.33333 \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} : 25.86666 \dots

25.86666 \dots

0.93, 0.9, 0.89, 0.92, 0.93, 0.86, 0.93, 0.87, 0.8, 0.9

56, 81, 80, 75, 48, 65, 90, 66, 70, 70

14 P 4

8, 16, 24, 32, 40

10, 17, 16, 18, 11

What is the variance of 1,9,4,12,13,13 ?
The variance of 1,9,4,12,13,13 is 25.86666…