Table :

A-4a

Calculating the Sum of the Cross-Products

Person

Hours Studied (X)

GPA (Y)

Candace

8

3.8

Denise

2

2  

Joaquin

2

2.3

Jon

7

3.4

Milford

5

2.4

Rachel

5

2.5

Shawna

1

1.7

Leroi

9

3.7

Jeanine

6

3.2

Marisol

10  

4   

Lee

2

1.5

Rashid

9

3.9

Sunny

3

2.6

Flora

6

3   

Kris

4

2.9

Denis

11  

3.9