Date:         Thu, 23 Jul 1998 09:49:31 -0400
Reply-To:     Mike.Janicke@JMAGROUP.COM
Sender:       "SAS(r) Discussion" <SAS-L@UGA.CC.UGA.EDU>
From:         Mike Janicke <Mike.Janicke@JMAGROUP.COM>
Subject:      BASIC STATISTIC QUESTION
Content-type: text/plain; charset=us-ascii

I have a sample of data and am asked to find the mean, E(X), E(X**2),  and
STD(X).
example of the data is as follows:
 
$1,235.34
$500.23
$220.35
 
it's been quite awhile since i've had a statistics course.  i imagine that
i can use SAS to complete this, however i'd like to understand the formulas
as well.  can anyone help me figure this one out by hand for this data?
thank you!!!