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For each of the sets of scores given in problems 5b and 5c


1. For each of the sets of scores given in Problems 5b and 5c, show that ΣX2 ≠ (ΣX)2

2. Given the scores X1 = 3, X2 = 4, X3 = 7 and X4 = 12. find the values of the following expressions. (This question pertains to Note 2.1.)

a. ΣNi=1 (Xi + 2)

b. ΣNi=1 (Xi - 3)

c. ΣNi=1 (2Xi)

d. ΣNi=1 (Xi / 4)

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Basic Statistics: For each of the sets of scores given in problems 5b and 5c
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