From owner-freebsd-questions@freebsd.org Tue Apr 19 21:31:44 2016 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 597F1B14923 for ; Tue, 19 Apr 2016 21:31:44 +0000 (UTC) (envelope-from galtsev@kicp.uchicago.edu) Received: from cosmo.uchicago.edu (cosmo.uchicago.edu [128.135.70.90]) by mx1.freebsd.org (Postfix) with ESMTP id 386EF103E for ; Tue, 19 Apr 2016 21:31:43 +0000 (UTC) (envelope-from galtsev@kicp.uchicago.edu) Received: by cosmo.uchicago.edu (Postfix, from userid 48) id 38D33CB8CA0; Tue, 19 Apr 2016 16:31:43 -0500 (CDT) Received: from 128.135.52.6 (SquirrelMail authenticated user valeri) by cosmo.uchicago.edu with HTTP; Tue, 19 Apr 2016 16:31:43 -0500 (CDT) Message-ID: <36540.128.135.52.6.1461101503.squirrel@cosmo.uchicago.edu> In-Reply-To: References: <571533F4.8040406@bananmonarki.se> <57153E6B.6090200@gmail.com> <20160418210257.GB86917@neutralgood.org> <64031.128.135.52.6.1461017122.squirrel@cosmo.uchicago.edu> <441t61efpv.fsf@be-well.ilk.org> <13260.128.135.52.6.1461084740.squirrel@cosmo.uchicago.edu> <57166A7F.2030104@radel.com> <44929.128.135.52.6.1461091476.squirrel@cosmo.uchicago.edu> Date: Tue, 19 Apr 2016 16:31:43 -0500 (CDT) Subject: Re: Raid 1+0 From: "Valeri Galtsev" To: nightrecon@hotmail.com Cc: freebsd-questions@freebsd.org Reply-To: galtsev@kicp.uchicago.edu User-Agent: SquirrelMail/1.4.8-5.el5.centos.7 MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Apr 2016 21:31:44 -0000 On Tue, April 19, 2016 4:11 pm, Michael Powell wrote: > Valeri Galtsev wrote: > > [snip] >> Even twin brothers are unlikely to die >> during the same week or Month. This one is between fundamental >> assumptions >> statistics is based on. >> > > And yet I knew two identical twin brothers that did die at the same time! > They were together in the same car You see, this makes these two events not independent but correlated by the fact they were in the same car... Do we really need to continue this? On the other hand, two clowns may be giving public good entertainment ;-) Valeri > when they were obliterated by an out of > control jack-knifed tractor trailer truck. Was a long time ago, but it > happened. > > Just because probability may, or may not, predict a thing does not mean it > can or cannot happen. Nobody said it can not. One only mentioned that if single event has probability P. probability of two such events if they are independent is P squared, which (for small P) is much smaller than probability of single event. I guess from now on I really need to go and put on a clown makeup ;-) > > -Mike > > > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to > "freebsd-questions-unsubscribe@freebsd.org" > ++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++