Image caption, Plot each data ... For a negative correlation, as one variable increases the other variable decreases. A correlation is not used to describe a scatter diagram that shows no ...

Correlation measures association, but doesn't show if x causes y or vice versa—or if the association is caused by a third factor. Correlation may be easiest to identify using a scatterplot ...

Line of best fit refers to a line through a scatter plot of data points that best expresses the relationship between those points. Statisticians typically use the least squares method (sometimes ...