Hi, I have a list of six web-based programs for the normal distribution at the following URL:
<http://davidmlane.com/hyperstat/Statistical_analyses.html#T> Good luck, --David > From: [EMAIL PROTECTED] (isaac) > Organization: http://groups.google.com/ > Newsgroups: sci.stat.edu > Date: 8 Jul 2002 13:23:45 -0700 > Subject: normal distribution: calculating % "under the curve" > > Hi, I'm a newbie at stats. If I have a normal distribution defined by > mean x and stddev s, I know that x + s defines a threshold at the 86th > percentile. I know of a chart that dumps out a relationship between > threshold ( expressed as # of s from x ) and percentile. However, is > there a formula for computing the threshold, given a percentile, x, > and s? For example, how about the 93rd percentile? I'd rather not > have to use interpolation. > > Thanks, > > Isaac . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
