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

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

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

4.9, 12.4, 20.5, 28.8, 34.3

52 p 4

17 C 9

2, 64, 66, 68, 69, 71, 72, 73, 73.5, 74, 75, 76, 77, 79, 80, 80.2, 80.3, 565

4 C 1

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…