What is the variance of 3,6.4,5,1,2,3,2,4,3 ?

The variance of 3,6.4,5,1,2,3,2,4,3 is 2.74

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variance of 3,6.4,5,1,2,3,2,4,3

variance

3, 6.4, 5, 1, 2, 3, 2, 4, 3

2.74

Solution steps

Compute the average,

\overset{x}{ˉ} : 3.26666 \dots

Compute

i = 1 \sum n (x_{i} - \overset{x}{ˉ})^{2} : 21.92

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} : 2.74

2.74

1, 9, 4, 12, 13, 13

6 C 3

1, 2

5, 1, 9, 2, 7, 3, 1, 8, 8, 1, 3

50 n C r 5

What is the variance of 3,6.4,5,1,2,3,2,4,3 ?
The variance of 3,6.4,5,1,2,3,2,4,3 is 2.74