Answer:
[tex] r = -0.39[/tex]
And the determination coeffcient is just the correlation coeffcient square and we got:
[tex] R = r^2 = (-0.39)^2 =0.1521[/tex]
And rounded to the nearest tenth thousand would be 0.1521
Step-by-step explanation:
The correlation coefficient is a measure of variability and is given by this formula:
[tex]r=\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2 -(\sum x)^2][n\sum y^2 -(\sum y)^2]}}[/tex]
For this case we have
[tex] r = -0.39[/tex]
And the determination coeffcient is just the correlation coeffcient square and we got:
[tex] R = r^2 = (-0.39)^2 =0.1521[/tex]
And rounded to the nearest tenth thousand would be 0.1521
