[R] Standard variance / devistion clarification

[David Winsemius]

On Mar 1, 2012, at 12:30 PM, Suranga Kasthurirathne wrote:

> Dear gurus,
>
> Im a newbie, and I want to ask a very general question.
> Assume that I have a set of numbers as follows,
>
> 1, 1, 2, 10, 100, 10,1
>
>> From these, I need to identify which number is the most different as
> compared to others. (in this case, it will be 100, since its way  
> larger
> than the other numbers). It doesnt have to be specifically this way,  
> but I
> need to identify which number(s) are most different compared to the  
> others.
>
> Any idea as to what I need to do this ? Im a math noob, so I'm also  
> going
> to need to ask it this is called 'standard deviation' or  
> 'variance' :-)

You are requested not to use rhelp as a statistics Q&A list. It was  
not set up to remediate gaps in statistics education. There are other  
websites and perhaps mailing list whose purposes would be a better fit  
for this question.

-- 

David Winsemius, MD
West Hartford, CT