Hi,
Please check this link:
http://stats.stackexchange.com/questions/25956/what-formula-is-used-for-standard-deviation-in-r
A.K.
It is my understanding that the R function SD finds the standard deviation of a
random variable or a list. Please consider the following list: { 1, 2, 3 }. I
claim that the standard deviation of this list is not 1. However, the following
R statement returns 1:
sd ( seq(1:3) )
What am I missing?
I thank the group in advance for their responses.
Bob
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