SOLUTION: The best-fit line (or regression line) on a scatter diagram is a line that lies closer to the data points than any other possible line (according to a standard statistical measure

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Question 366155: The best-fit line (or regression line) on a scatter diagram is a line that lies closer to the data points than any other possible line (according to a standard statistical measure of closeness). Why do we need to distinguish between strong and weak correlation of data sets using best-fit lines? When a correlation has been established between the two data sets, how is it linked to causality?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
A correlation that is close to -1 or 1 shows that there's a bigger chance of causality (as opposed to a correlation that's closer to 0)