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Statistical Literacy

cece

New member
Joined
Feb 23, 2011
Messages
5
The question is;
What symbol is used for the arithmetic mean when it is a sample statistic? Also;
What symbol is used when the arithmetic mean is a population parameter?

I am a bit confused on those two questions. I have the Understanding basic statistics book and I've gone over the chapter reviews but I am just not getting it?
I know that the "Means is the average usually used to compute a test average" at least I think that's correct, but what are the symbols? I thought the first question was a "small n" and the second question was a "large N" but I am not so sure now?
Or maybe it's that weird looking ex and I put the small n under it? the same with the other one?

Can anyone help me on this?

Thank you
Cece
 

Subhotosh Khan

Super Moderator
Staff member
Joined
Jun 18, 2007
Messages
18,091
cece said:
The question is;
What symbol is used for the arithmetic mean when it is a sample statistic? Also;
What symbol is used when the arithmetic mean is a population parameter?

I am a bit confused on those two questions. I have the Understanding basic statistics book and I've gone over the chapter reviews but I am just not getting it?
I know that the "Means is the average usually used to compute a test average" at least I think that's correct, but what are the symbols? I thought the first question was a "small n" and the second question was a "large N" but I am not so sure now?
Or maybe it's that weird looking ex and I put the small n under it? the same with the other one?

Can anyone help me on this?

Thank you
Cece
Different books/class may choose different symbols to signify "means".

For one view, go to:

http://www.childrens-mercy.org/stats/de ... s/mean.htm

or:

http://stattrek.com/Lesson1/Notation.aspx
 

cece

New member
Joined
Feb 23, 2011
Messages
5
Thank you, I will check out those sites and see if that helps me out.

Thank you very much for your help, I really appreciate it!

So far I've gotten straight A's in all my class until this class. Math is not one of my strong subjects, I think it's either you get it or you don't type thing. I find it hard to retain the information that I learn with Math for some reason. I also tend to overanalyze things as well.

Thank you for your help!

Cece
 

cece

New member
Joined
Feb 23, 2011
Messages
5
Got it, the first one is " x" and the other one is " The lowercase Greek letter mu, which is pronounced "mew" which looks like: m but in the Greek version.

Thanks for everyones help!!

Cece
 
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