3.28 Federal Contaminated Sites (2005) The data in the following table give the number of federal contaminated sites for provinces and territories along with the size of the province/territory, and the percentage of the total area.

a. Draw a scatterplot with MINITAB. Is there any clear pattern in the scatterplot? Describe the relationship between number of contaminated sites and the size of the province/territory.

b. Use the MINITAB output to calculate the correlation coefficient. Does this confirm your answer to part a?

c. Are there any outliers or clusters in the data? If so, can you explain them?

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Province or Territory Total Area Percent of Number of Sites (thousands km) Total Area Alberta 738 405 4.1 British Columbia 2223 6 0.1 Manitoba 1062 55 0.6 New Brunswick 228 73 0.7 Newfoundland and Labrador 688 1542 15.4 Northwest Territories 281 1076 10.8 Nova Scotia 876 648 6.5 Nunavut 238 651 6.5 Ontario 2449 662 6.6 Prince Edward Island 97 945 9.5 Quebec 1851 482 4.8 Saskatchewan 432 1346 13.5 Yukon 100 2093 21.0