help, a simple problem

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#41

From: Jon Dodd
Date: Sun, 20 Sep 1998 00:00

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Hi,

Please could you help me with this simple problem.

From a normal distribution with mean m and standard deviation sd,  I
pick a random sample A and then second B. If A>B then the value of A is
assigned to group X, if B>A then value of A is assigned to group Y. What
is the resulting mean and standard deviation of the two distributions X
and Y? I am not mathamatically oriented so a step by step proof would be
great.

many thanks
Jon

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From: Jon Dodd <jvd@physiol.ox.ac.uk>
Subject: help, a simple problem
Date: 1998/09/20
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