School of
	Public Health   University of Michigan Department of Epidemiology

Scenario 1

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As a coworker prepares to make a map from the disease rates over an area, she asks you about the relationship between interpolation and smoothing. You check the definitions, and now understand that interpolation means fitting the data precisely, whereas smoothing permits one to relax the fit (perhaps the data is noisy). Now you have some questions:

  1. How can the noise suspected in the data be incorporated into a map-making procedure?
  2. When is interpolation a good idea?
  3. Provided you make a map, how can you verify that it's a good one?
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