Message-ID: <3038.68.145.107.33.1241027347.squirrel@68.145.107.33>
Date: 2009-04-29T17:49:07Z
From: guox at ucalgary.ca
Subject: Normal distribution with R
If we knew two pth quantiles for a normal distribution,
is it possible that we can find mean and sigma for the normal distribution
using R?
Let x ~ norm(mean, sigma).
Suppose that qnorm(0.9,mean,sigma) and qnorm(0.1,mean,sigma) are known.
Can we find mean and sigma using R?
Thanks,
-james