A survey was conducted in 20 counties to determine the percentage of teenagers who had used marijuana and other drugs.Data shown on the following scatterplot indicate a correlation of 0.972 between the percent of teens who have used marijuana and the percent who have used other drugs.Describe the association.
A)Strong curved relation in a positive direction
B)Weak linear relation in a positive direction
C)Strong linear relation in a positive direction
D)Strong nonlinear relation in a positive direction
E)No evidence of relation

Question

A survey was conducted in 20 counties to determine the percentage of teenagers who had used marijuana and other drugs.Data shown on the following scatterplot indicate a correlation of 0.972 between the percent of teens who have used marijuana and the percent who have used other drugs.Describe the association. 
A)Strong curved relation in a positive direction 
B)Weak linear relation in a positive direction 
C)Strong linear relation in a positive direction 
D)Strong nonlinear relation in a positive direction 
E)No evidence of relation

Quizplus · Accepted Answer

The correlation coefficient of 0.972 indicates a strong linear relation in a positive direction between the percentage of teenagers who have used marijuana and the percentage who have used other drugs.

A Survey Was Conducted in 20 Counties to Determine the Percentage