Concerns about global warming have led to a studies of the relationship between global temperature and the concentration of carbon dioxide. Listed are concentrations (in parts per million) of CO2 and temperatures in centigrade (C) for different years. What is the linear relationship (r) for the two variables? Interpret the result. (There are 2 answers) CO2 314 317 320 326 331 339 346 354 361 369 Temp 13.9 14.0 13.9 14.1 14.0 14.3 14.1 14.5 14.5 14.4

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