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 Problem in Mean and Standard deviation calculation

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T O P I C    R E V I E W
dhiman95 Posted - 07/18/2021 : 2:03:04 PM
Origin Ver. and Service Release (Select Help-->About Origin):
Operating System:
Sir, I have a problem with calculating the mean and standard deviation of a lognormal distribution.
In this distribution, I got a mean of 64.6 and a standard deviation of 40.44, but I think this standard deviation is not right. Can you please help me to sort out this problem?
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Echo_Chu Posted - 07/19/2021 : 05:48:21 AM
Hi,

The standard deviation of lognormal is created with equation in the page below
https://www.originlab.com/doc/Origin-Help/LogNormal-FitFunc

I am not quite sure why you feel the result is not right?

Echo
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