Question

When finding the slope of the trend line, what does the slope mean about the data of the scatterplot? Explain.

Answer 1

It means if the line goes up it is postive corralation, and it it goes down, it is negative. But if there are just random dots, than there is no corralation, and you cant draw a line

Answer 2

Sample Response: The slope of the trend line is the rate of change of the data. It is the ratio of the change of the dependent variable to the rate of change of the independent variable. Slope represents the value of the correlation.