If the weekly hours worked and semester GPA had a Correlation Coefficient of .71
ID: 3316067 • Letter: I
Question
If the weekly hours worked and semester GPA had a Correlation Coefficient of .71, what would be the Coefficient of Determination?
50
.84
.50
d 71
Here's some data (weekly hours worked and semester GPA):
HOURS GPA
22 3.6
12 3.6
39 2.1
10 4.0
16 2.8
13 3.3
40 1.4
15 3.7
18 2.1
11 3.4
33 1.0
40 2.2
25 3.1
71
a50
b..84
c..50
d 71
Here's some data (weekly hours worked and semester GPA):
HOURS GPA
22 3.6
12 3.6
39 2.1
10 4.0
16 2.8
13 3.3
40 1.4
15 3.7
18 2.1
11 3.4
33 1.0
40 2.2
25 3.1
71
Explanation / Answer
Correlation Coefficient = 0.71
then R - Squared or Coefficient of Determination = (0.71)2 = 0.5041
R2 = 0.5041
Cheers!