Date: Sun, 17 Aug 1997 09:58:28 -0500 From: dkelly@hiwaay.net To: Greg Lehey <grog@lemis.com> Cc: chat@FreeBSD.ORG, platforms@FreeBSD.ORG Subject: Re: speed test Message-ID: <199708171458.JAA14108@nospam.hiwaay.net> In-Reply-To: Message from Greg Lehey <grog@lemis.com> of "Sun, 17 Aug 1997 15:00:33 %2B0930." <19970817150033.65486@lemis.com>
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Greg Lehey writes: > > On Sat, Aug 16, 1997 at 12:42:09PM -0600, Warner Losh wrote: > > In message <199708161005.MAA02831@desk.jhs.no_domain> "Julian H. Stacey" writes: > >> What does "3-sigma" mean in English ? > >> (I'm English not American, perhaps others were puzzled too ?) > > > > Three standard deviations away from the average. Generally used to > > connote being on the cutting edge. > > That's a rather arbitary interpretation, isn't it? What about the > trailing edge? It means "an event whose probability falls outside 3 standard deviations from the mean", including those above and those below the mean. For it to mean anything at all you have to consider who took the samples. -- David Kelly N4HHE, dkelly@hiwaay.net ===================================================================== The human mind ordinarily operates at only ten percent of its capacity -- the rest is overhead for the operating system.
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