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Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570

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Chapter
Section
BuyFindarrow_forward

Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570
Textbook Problem

Calculate SP (the sum of products of deviations) for the following scores. Note: Both means are decimal values, so the computational formula works well.

X Y
0 2
0 1
1 0
2 1
1 2
0 3

To determine

To calculate: The sum of products of deviations (SP).

Explanation

Given info:

The given scores are:

X Y
0 2
0 1
1 0
2 1
1 2
0 3

Calculation:

The sum of products of deviations is calculated as:

SP=XYXYn

Where X, Y is for scores and n is for number of scores. The below table showing the calculations needed for calculating the sum of products of deviations (SP):

X Y XY
0 2 0
0 1 0
1 0 0
2 1 2
1 2 2
0 3

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