Question

The correlation coefficient (r) between the number of miles driven x and the number of gallons of gasoline used y is 0.925

What percent of the variation in the number of gallons of gasoline can be explained by differences in the number of miles driven?
7.5%
14.4%
85.6%
92.5%

Answer 1

The correct answer is 85.6 hope that helps

Answer 2

OptionC

Explanation:

Given that the correlation coefficient (r) between the number of miles driven x and the number of gallons of gasoline used y is 0.925

Coefficient of determination = square of r

= 0.8556

=85.6%

Hence the percent of the variation in the number of gallons of gasoline can be explained by differences in the number of miles driven is 85.6%

Option C