Study the following graph and determine what is the value of

Study the following graph, and determine what is the value of the slope of the regression line (i.e., b). Explain your answer.

Solution

The slope in this graph is 1.5. We can see that by looking at the points.

(1, 1.5) (2, 3) (3, 4.5)

Y is a 1.5 factor of X, making the slope 1.5.

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