100 points help now please


Step 3: Analyze your data.
Now that you have represented your data graphically, it can be more easily analyzed.

a) Describe how the line of best fit and the correlation coefficient can be used to determine the
correlation between the two variables on your graph.

b) Describe the type of correlation between the two variables on your graph. How do you know?

c) Does the correlation between the variables imply causation? Explain.

d) How do you calculate the residuals for a scatterplot?

e) Calculate the residuals for your scatterplot in step 2d.

f) Create a residual plot for your data.

g) Does your residual plot show that the linear model from the regression calculator is a good
model? Explain your reasoning.