What is the variance of 46,53,38,67,46,57,61,42,63,55,46 ?

The variance of 46,53,38,67,46,57,61,42,63,55,46 is 86.56363…

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variance of 46,53,38,67,46,57,61,42,63,55,46

variance

86.56363 \dots

Solution steps

Compute the average,

\overset{x}{ˉ} : 52.18181 \dots

Compute

i = 1 \sum n (x_{i} - \overset{x}{ˉ})^{2} : 865.63636 \dots

Compute the number of terms in the data set:

n = 11

Compute

Va r (X) = i = 1 \sum n \frac{( x _{i} - x ˉ ) ^{2}}{n - 1} : 86.56363 \dots

86.56363 \dots

What is the variance of 46,53,38,67,46,57,61,42,63,55,46 ?
The variance of 46,53,38,67,46,57,61,42,63,55,46 is 86.56363…