Find the value of correlation and also regression equation.
Conclude and record how much of the math grade can be describeed by the PE grade? How much of the Writing grade can be describeed by the Reading grade?
Correlation - Variance-Coefficient of Determination
|
Standard Test Scores
|
|
Name
|
Gender
|
Absences
|
PE
|
Math
|
Writing
|
Reading
|
|
Alex
|
Boy
|
5
|
49
|
85
|
86
|
80
|
|
Anthony
|
Boy
|
18
|
51
|
39
|
71
|
75
|
|
Douglas
|
Boy
|
1
|
82
|
74
|
78
|
79
|
|
Jorge
|
Boy
|
4
|
56
|
66
|
68
|
60
|
|
Joshua
|
Boy
|
5
|
83
|
79
|
78
|
77
|
|
Luke
|
Boy
|
0
|
94
|
89
|
84
|
84
|
|
Robert
|
Boy
|
17
|
36
|
36
|
56
|
50
|
|
Rupert
|
Boy
|
4
|
24
|
55
|
56
|
52
|
|
Seth
|
Boy
|
0
|
61
|
92
|
89
|
83
|
|
Wayne
|
Boy
|
1
|
65
|
92
|
96
|
91
|
|
Blair
|
Girl
|
3
|
94
|
59
|
66
|
90
|
|
Brooke
|
Girl
|
2
|
75
|
35
|
43
|
46
|
|
Carmen
|
Girl
|
0
|
49
|
91
|
91
|
90
|
|
Charlita
|
Girl
|
16
|
23
|
49
|
55
|
49
|
|
Kim
|
Girl
|
2
|
71
|
90
|
92
|
95
|
|
Li
|
Girl
|
1
|
73
|
98
|
93
|
95
|
|
Rachel
|
Girl
|
2
|
92
|
87
|
92
|
91
|
|
Sara
|
Girl
|
3
|
33
|
87
|
93
|
94
|
|
Sheetal
|
Girl
|
0
|
18
|
100
|
97
|
97
|
|
Tawayna
|
Girl
|
14
|
31
|
65
|
55
|
63
|