What is the variance of 15,9,6,20,13,14,17,16,5 ?

The variance of 15,9,6,20,13,14,17,16,5 is 25.94444…

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variance of 15,9,6,20,13,14,17,16,5

variance

15, 9, 6, 20, 13, 14, 17, 16, 5

25.94444 \dots

Solution steps

Compute the average,

\overset{x}{ˉ} : 12.77777 \dots

Compute

i = 1 \sum n (x_{i} - \overset{x}{ˉ})^{2} : 207.55555 \dots

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} : 25.94444 \dots

25.94444 \dots

25 n C r 4

56 c 5

7 P 5

5 P 3

10 C 4

What is the variance of 15,9,6,20,13,14,17,16,5 ?
The variance of 15,9,6,20,13,14,17,16,5 is 25.94444…