Question

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.

Answer 1

Please define SS.

Answer 2

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

Answer 3

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.