What is the variance of 62,77,78,80,82,82,83,84,85,87,89,95 ?

The variance of 62,77,78,80,82,82,83,84,85,87,89,95 is 63.81818…

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

variance of 62,77,78,80,82,82,83,84,85,87,89,95

variance

63.81818 \dots

Solution steps

Compute the average,

\overset{x}{ˉ} : 82

Compute

i = 1 \sum n (x_{i} - \overset{x}{ˉ})^{2} : 702

Compute the number of terms in the data set:

n = 12

Compute

Va r (X) = i = 1 \sum n \frac{( x _{i} - x ˉ ) ^{2}}{n - 1} : 63.81818 \dots

63.81818 \dots

What is the variance of 62,77,78,80,82,82,83,84,85,87,89,95 ?
The variance of 62,77,78,80,82,82,83,84,85,87,89,95 is 63.81818…