Question

Variance for first 15 natural number

Answer 1

Variance of first n natural number is

$\frac{( {n}^{2} - 1) }{12}$

$= \frac{ ({15}^{2} - 1)}{12}$

$= \frac{225 - 1}{12}$

$= \frac{224}{12}$

$= 18.6666... \\ = 18.67$

Therefore, Variance of first 15 natural number is 18.67

Hope this is helpful❤

Answer 2

Answer:

variance of first 15 natural number is ?