The National Interagency Fire Center (www .nifc.gov) reports statistics about wildfires. Here’s an analysis of the number of wildfires between 1985 and 2015.

a) Is a linear model appropriate for these data?
b) Interpret the slope in this context.
c) Can we interpret the intercept? Why or why not?
d) What does the value of se say about the size of the residuals? What does it say about the effectiveness of the model?
e) What does R² mean in this context?

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Fires 87,500- 75,000 62,500- 50,000 5 сл 10 00 Variable Intercept Years since 1985 15 20 Years since 1985 Response variable is: Fires R squared = 2.7% s = 12397 25 Coefficient 78791.6 -221.575 30 35