Which of the following graphs shows a positive linear relationship with a correlation coefficient, r, close to 1?

What is the greatest common factor of 8 and 36

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

41/17 as a decimal rounded to the nearest hundredth