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posted by Tracy on Tuesday, January 29, 2008 at 6:47pm.

Calculate SS, variance, and standard deviation for the following sample of n=9 scores:2,0,0,0,0,2,0,2,0.(Note: The computational formula for SS works best with these scores.) I keep getting the wrong numbers. Thank You.

Please define SS.

sum of squares SS=E(x-u)squared in greek of course

I get: u=.66666667 ss=8 v=1 sd=1 Note that I am using the formula for the estimate of the variance from a sample. So, I devide by n-1.

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