Question

The correlation coefficient for poor health and not exercising in a group of people is 0.67. Analyze the following statement.

Poor health is caused by not exercising.

Is this a reasonable conclusion?

Yes; everyone who doesn't exercise is by definition unhealthy

Yes; the correlation coefficient is above 0.5, so that implies causation

No; the data are only weakly correlated, and many people are healthy who don't exercise

No; poor health and not exercising are completely unrelated

Answer 1

C. :)