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Sample vs True Mean

overst33r

Diamond Member
Oct 3, 2004
5,762
12
81
I can't find the difference in my stats book, can anyone offer a definition of the two? I know that the sample mean is your regular average, xbar, etc. while the True mean, Mu, depends on each distribution as far as I know...

What is the difference between the two?
 

Aluvus

Platinum Member
Apr 27, 2006
2,913
0
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Sample mean is the mean of the specific sample you have taken. Population mean is the mean of the entire population. Sample mean is an approximation of population mean.
 

Unmoosical

Senior member
Feb 27, 2006
372
0
0
Also, most of the time you will never actually know the true mean because that would mean that you collected data on every single unit of what you are studying.
 

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