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From: "Mike " <mike.curran@rbccm.com>
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Subject: standard deviation from range
Date: Fri, 12 Aug 2011 13:52:29 +0000 (UTC)
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I have some statistics from a set of univariate data including, number of observations, mean and range.  Assuming that the data come from a normal population, I'd like the distribution of the standard deviation of the population.

Anybody know how to do this or a good source?

thanks