eng-ru, техника
May. 29th, 2007 02:03 am![[identity profile]](https://www.dreamwidth.org/img/silk/identity/openid.png)
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Пожалуйста, подскажите, что есть F.S.D. в следующем контексте сертификата калибровки:
We certify that this Gauge is has been inspected and calibrated for accuracy and passed within our limits of plus or minus 2% F.S.D.
We certify that this Gauge is has been inspected and calibrated for accuracy and passed within our limits of plus or minus 2% F.S.D.
no subject
Date: 2007-05-28 10:42 pm (UTC)The fractional standard deviation of a random variable is equal to its standard deviation σ divided by its mean μ. This ratio has also been called the “coefficient of variation.” In practice, σ and μ are replaced by estimators such as sample standard deviation and a sample mean, respectively. The FSD is often expressed as a percent.
Коэффициент вариации.
Date: 2007-05-28 10:51 pm (UTC)Source - http://glossary.basegroup.ru/k/varicoef.htm
Re: Коэффициент вариации.
Date: 2007-05-28 11:07 pm (UTC)