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# chp 7 - At the end of this chapter you should be able to...

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Chapter 7 Scatterplots, Association and Correlation 1 At the end of this chapter, you should be able to Describe the relationship between two variables in a ___________. Calculate the __________ coefficient between two variables. _________ the value of the correlation coefficient between two variables. Understand the properties of the correlation coefficient. 2 Examining Relationships Relationship between 2 or more variables. Ex. Height and Weight Ex. Alcohol and Body Temperature Ex. SAT Verbal Score and SAT Math Score Ex. High School GPA and College GPA 3 Two Types of Variables _________ Variable Measures an outcome of a study. ___________ Variable Used to explain the response variable. Examples Body Temperature = ________ variable. Alcohol = __________ variable. 4

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Two Types of Variables Does ____ mean that explanatory variable _______ response variable. To establish causation you need to ________ all other sources of variation, except for the explanatory variable. See the chapter on experimental design later.
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