More on Correlation and Causation

If the graph of the per capita rate of  divorces in Maine and margarine sales track each other, are there grounds to say one causes the other?  Over a 10 year period there is a strong correlation between the two sets of data.  How do you deal with that? and what is the proper language to describe the various possible scenarios?

Explainer_ Correlation, causation, coincidence and more _ Science News for Students

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