standard deviation graph

K

keano

I have values that are produced every 3 minutes. I have calculated the
standard deviation of those values for each hour for a 7 month span. That is
5115 records.

How do I make a bell shaped curve with these values?
 
M

Mike Middleton

keano -

I suggest you start by creating a histogram (column chart of a frequency
distribution).

The Histogram tool of the Analysis ToolPak (an Excel-provided add-in)
automates the procedure, or you could use my Better Histogram tool available
from the Histogram page at www.treeplan.com.

The chart of the frequency distribution may or may not have a bell shape.

- Mike Middleton
http://www.DecisionToolworks.com
Decision Analysis Add-ins for Excel
 

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