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layout mathjax author affiliation e_mail date title chapter section topic definition sources def_id shortcut username
definition
true
Joram Soch
BCCN Berlin
joram.soch@bccn-berlin.de
2020-10-07 20:47:00 -0700
Standardized moment
General Theorems
Probability theory
Further moments
Standardized moment
authors year title in pages url
Wikipedia
2020
Moment (mathematics)
Wikipedia, the free encyclopedia
retrieved on 2020-10-08
D99
mom-stand
JoramSoch

Definition: Let $X$ be a random variable with expected value $\mu$ and standard deviation $\sigma$ and let $n$ be a positive integer. Then, the $n$-th standardized moment of $X$ is defined as the $n$-th moment of $X$ about the value $\mu$, divided by the $n$-th power of $\sigma$:

$$ \label{eq:mom-stand} \mu_n^{*} = \frac{\mu_n}{\sigma^n} = \frac{\mathrm{E}[(X-\mu)^n]}{\sigma^n} ; . $$