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Calculate each requested value for the following set of scores (X): 3, 4, 2, 6. In your answer show all computational steps (i.e., show how you've arrived at the number)

a. ΣX - 2 

b. Σ(X - 2) 

c. Σ(X - 2)2

d. ΣX2 - 2 

e. (ΣX)2- 2

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