Discussion:
SEARCHING FOR CAUSES
This week examines how to use correlation and simple linear regression to test the relationship of two variables. In both of these tests you can use the data points in a scatterplot to draw a line of best fit; the closer to the line the points are the stronger the association between variables. It is important to recognize, however, that even the strongest correlation cannot prove causation.
For this Discussion, consider a true relationship between variables.
Post a brief explanation of when an observed correlation might represent a true relationship between variables and why. Be specific and provide examples