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Calculating Standard Deviation

natalie_
natalie_
Level V
Feb 25, 2016 10:39 AM 24603 views

Hi all.

I have a question about JMP and calculating standard deviation.


From my understanding about statistics, there are different formulas to calculate stand deviation for different types of distribution (normal or gamma for example).  When I am use JMP to calculate standard deviation, does it always assume that my data has a normal distribution?

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Byron_JMP
Staff Byron_JMP
Staff
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Re: Calculating Standard Deviation

Feb 25, 2016 11:13 AM (28310 views)  |  Posted in reply to message from natalie_ 02-25-2016

Yes, unless you specify a distribution model.

When I have specific distribution model for a column, I save that as a column property.

http://www.jmp.com/support/help/Fit_Distributions.shtml

JMP Systems Engineer, Health and Life Sciences (Pharma)

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2 REPLIES 2
Byron_JMP
Staff Byron_JMP
Staff
Solution


Re: Calculating Standard Deviation

Feb 25, 2016 11:13 AM (28311 views)  |  Posted in reply to message from natalie_ 02-25-2016

Yes, unless you specify a distribution model.

When I have specific distribution model for a column, I save that as a column property.

http://www.jmp.com/support/help/Fit_Distributions.shtml

JMP Systems Engineer, Health and Life Sciences (Pharma)
natalie_
natalie_
Level V


Re: Calculating Standard Deviation

Mar 9, 2016 04:42 PM (24470 views)  |  Posted in reply to message from natalie_ 02-25-2016

Thank you and sorry for the delay.

This was very helpful.

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