What is the SS for the population of N 7 scores below Give

What is the SS for the population of N = 7 scores below? Give you answer as a whole number (that is, give a number like 1, 2, 3... no decimal or fractional part).

Solution

Getting the mean, X,          
          
X = Sum(x) / n          
Summing the items, Sum(x) =    28      
As n =    7      
Thus,          
X =    4      
          
Setting up tables,          
x   x - X   (x - X)^2  
8   4   16  
1   -3   9  
4   0   0  
3   -1   1  
5   1   1  
3   -1   1  
4   0   0  
          
Thus, Sum(x - X)^2 = SS =   28   [ANSWER]