What is the variance of 6,7,10,11,11,13,16,18,25 ?

The variance of 6,7,10,11,11,13,16,18,25 is 35

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variance of 6,7,10,11,11,13,16,18,25

variance

6, 7, 10, 11, 11, 13, 16, 18, 25

35

Solution steps

Compute the average,

\overset{x}{ˉ} : 13

Compute

i = 1 \sum n (x_{i} - \overset{x}{ˉ})^{2} : 280

Compute the number of terms in the data set:

n = 9

Compute

Va r (X) = i = 1 \sum n \frac{( x _{i} - x ˉ ) ^{2}}{n - 1} : 35

35

10, 16, 12, 15, 9, 16, 10, 17, 12, 15

27 c 4

17 C 3

5.2, 6.1, 4.5, 8.6, 7.8, 8

1.69, 1.7, 1.69, 1.71, 1.68, 1.69, 1.68, 1.7, 1.67, 1.68

What is the variance of 6,7,10,11,11,13,16,18,25 ?
The variance of 6,7,10,11,11,13,16,18,25 is 35