How Can We Describe the Relationship between two sets of Quantitative Data? 1.

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Presentation transcript:

How Can We Describe the Relationship between two sets of Quantitative Data? 1

2

3

 Here is how to do it by hand: 4

5 xy

6 ElevationTemperature 1542 ft74 F 2238 ft73 F 5426 ft70 F 8634 ft58 F  Calculate the Correlation Coefficient  r =  What does the negative value reveal about the data?

7 ElevationTemperature 1542 ft74 F 2238 ft73 F 5426 ft70 F 8634 ft58 F  Let’s get the TI – 84 to do all this tedious work for us  Web link to a good graphing calculator regression: 