What is the variance of 3,7,9,11,11,11,15,17,18,24 ?

The variance of 3,7,9,11,11,11,15,17,18,24 is 36.48888…

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variance of 3,7,9,11,11,11,15,17,18,24

variance

3, 7, 9, 11, 11, 11, 15, 17, 18, 24

36.48888 \dots

Solution steps

Compute the average,

\overset{x}{ˉ} : 12.6

Compute

i = 1 \sum n (x_{i} - \overset{x}{ˉ})^{2} : 328.4

Compute the number of terms in the data set:

n = 10

Compute

Va r (X) = i = 1 \sum n \frac{( x _{i} - x ˉ ) ^{2}}{n - 1} : 36.48888 \dots

36.48888 \dots

3, 4, 6, 7, 5, 5, 10, 14, 3, 4, 6, 8, 5, 6, 10, 25, 4, 5, 7, 8, 5, 6, 13

12 C 3

8, 4, 2, 5, 5, 8, 5, 8, 2, 7

1, 2

3, 4, 5, 6, 7

What is the variance of 3,7,9,11,11,11,15,17,18,24 ?
The variance of 3,7,9,11,11,11,15,17,18,24 is 36.48888…