Read the wikpedia webpage below

'Normal distribution - Wikipedia, the free encyclopedia'
(http://en.wikipedia.org/wiki/Normal_distribution)

Read sections
1) Standardizing normal random variables
2) Moments
3) And at the top of the webpage : (variance: σ2 )


The p value is based on sigma square as shown in the table i the
Moments Section above. depending on the momentum you want (p value) it
is simply a function of sigma. You need to calculate sigma. Again,
sigma square is the "variance" which you can calculate with functions in
excel.

=VAR(A2:A11)


--
joel
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