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Scatter: Basic Scatter

*X-Axis: Enter a column of x-values.

*Y-Axis: Enter a column of y-values.

Group: Check to display all x-y pairs as separate groups on the same graph.

Regression Line: Use to illustrate the relationship between a predictor and response variable and to see if your model fits the data. This line is a graphical representation of the mathematical regression equation.  It is plotted using the least squares method which minimizes the sum of the squared distances between the points and the fitted line.