What is the variance of 10,12,15,18,11,13,14,16,19,20 ?

The variance of 10,12,15,18,11,13,14,16,19,20 is 11.73333…

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

variance of 10,12,15,18,11,13,14,16,19,20

variance

10, 12, 15, 18, 11, 13, 14, 16, 19, 20

11.73333 \dots

Solution steps

Compute the average,

\overset{x}{ˉ} : 14.8

Compute

i = 1 \sum n (x_{i} - \overset{x}{ˉ})^{2} : 105.6

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} : 11.73333 \dots

11.73333 \dots

10 n C r 5

7 P 7

5 P 2

5, 7, 9, 5, 6, 6, 6, 11, 11, 3, 3

6 n C r 4

What is the variance of 10,12,15,18,11,13,14,16,19,20 ?
The variance of 10,12,15,18,11,13,14,16,19,20 is 11.73333…