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*To*: tft@brainiac.com*Subject*: Re: (TFT) scaled stats*From*: <dwtulloh61@cox.net>*Date*: Fri, 7 Oct 2011 11:56:02 -0400*Authentication-results*: cox.net; none*Cc*: gem6868 <gem6868@verizon.net>*In-reply-to*: <F1E1E3E5C7AB4C4494E9C070C1B02EF5@OwnerPC>*Reply-to*: tft@brainiac.com*Sender*: tft-admin@brainiac.com*Sensitivity*: Normal

Well, the more dice, the better the approximation. For a true normal curve, 1 standard deviation encompasses about 68% of the population. 2 standard deviations, about 95% and 3 standard deviations about 99.5%. The standard deviation of the sum of k nsided dice is sqrt( n*(k^2-1)/12 ) ---- gem6868 <gem6868@verizon.net> wrote: > does this produce the "steeper" bell curve Mark is discussing - in other > words is that "true normal curve"? > > -----Original Message----- > From: dwtulloh61@cox.net > Sent: Thursday, October 06, 2011 7:16 PM > To: tft@brainiac.com > Cc: Mark Tapley > Subject: Re: (TFT) scaled stats > > Actually, 2d6 produce what's called a "Triangular Distribution." > > nD6, when n > 2, produce a normal (bell) curve. The more dice, the > closer the approximation to a true normal curve. The mean, or average, > of nD6 is 3.5*n ... so for 1D6, the average is 3.5 ... for 2D6, the average > is a 7 ... for 3D6 it's 10.5, etc. > ===== > Post to the entire list by writing to tft@brainiac.com. > Unsubscribe by mailing to majordomo@brainiac.com with the message body > "unsubscribe tft" > ===== > Post to the entire list by writing to tft@brainiac.com. > Unsubscribe by mailing to majordomo@brainiac.com with the message body > "unsubscribe tft" ===== Post to the entire list by writing to tft@brainiac.com. Unsubscribe by mailing to majordomo@brainiac.com with the message body "unsubscribe tft"

**References**:**Re: (TFT) scaled stats***From:*"gem6868" <gem6868@verizon.net>

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