🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: sci.math.stat
Article #365

Standard Deviation.

#365
From: anthony.r.rizzo
Date: Fri, 14 Aug 1992 17:28
7 lines
770 bytes
Can someone explain why calculating the Standard Deviation (SD),
for small samples, with (n-1) in the denominator is better than
doing so with (n) in the denominator?  I'm sure that there's
a perfectly good reason for doing so.  But we, lowly engineers
aren't usually told the reason.  Thanks now, for your response later.;-)

Tony Rizzo (att.com!homxc!rizzo)
Technical Details
Message-ID: <1992Aug14.172833.11844@cbfsb.cb.att.com>
Path: arc1-ca.pugleaf.net!sparky!uunet!ogicse!uwm.edu!linac!att!cbfsb!cbnewsf.cb.att.com!rizzo

Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!sparky!uunet!ogicse!uwm.edu!linac!att!cbfsb!cbnewsf.cb.att.com!rizzo
From: rizzo@cbnewsf.cb.att.com (anthony.r.rizzo)
Newsgroups: sci.math.stat
Subject: Standard Deviation.
Keywords: (n) versus (n-1)
Message-ID: <1992Aug14.172833.11844@cbfsb.cb.att.com>
Date: 14 Aug 92 17:28:33 GMT
Article-I.D.: cbfsb.1992Aug14.172833.11844
Sender: news@cbfsb.cb.att.com
Organization: AT&T
Lines: 7