(Description) Figure 19 Regions with an unusually low incidence are shaded.

Session 5: Reasoning with sets

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In the following table regions with an unusually low incidence are labelled as 2000 (0.05), 150 (0.0), 300 (0.0), 200 (0.0), 500000 (0.1), 400 (0.0), 50 (0.0), 1500 (0.07), 400 (0.0), 300 (0.0).