Question

Shelly found that the coefficient of determination between the age of a runner x and the runner’s finishing position y was about 0.728. What can she conclude?

72.8% of the variation in the runner’s finishing position is explained by the runner’s age.


0.728% of the variation in the runner’s finishing position is explained by the runner’s age.


53% of the variation in the runner’s finishing position is explained by the runner’s age.


0.728 more variation in the runner’s finishing position is caused by the runner’s age.

Answer 1

72.8% of the variations in the runner's finihsing position is explained by the runner's age

Step-by-step explanation:

Answer 2

• 72.8% of the variation in and the runner’s finishing position is explained by the runner’s age

Step-by-step explanation:

The number 0.728 is converted to percentage

• 0.728*100% = 72.8%

Correct option is the first one