The prices of ski rental packages from Gold Medal Sports® are shown in Table 12 for various numbers of days.

Let p be the price (in dollars) of a ski rental package for n days.
a. Construct a scatterplot.
b. Describe the four characteristics of the association. Compute and interpret r as part of your analysis.
c. Find an equation of a linear model.
d. Graph the model on the scatterplot. Verify that the line passes through the two points you chose in finding the equation in part (c) and that it comes close to all of the data points.

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Table 12 Prices of Ski Rental Packages Price of Package dollars) 15.00 30.00 45.00 56.00 70.00 78.00 Number of Days