Question

Prove

Answer 1

\[\sigma_{x}=(\sum_{}^{}(x^{2})/n-\mu^{2})\]

Answer 2

i tried to prove i am getting \[(\mu^{2}/n) instead of \mu^{2}\]

Answer 3

any link is also ok

Answer 4

its a formulae for Standard deviation

Answer 5

any stats people can do