In your own words, what is meant by the statement that correlation does not imply causality?

1. In your own words, what is meant by the statement that correlation does not imply causality?
2. In your own words, please describe the difference between the regression equation  

1.  and the regression equation  

1.  .
2. Values of r:  If you had computed the value of the linear correlation coefficient to be 1.200, what should you conclude?

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