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Determine whether the scatter diagram indicates that a linear relation may exist between the two variables. If the relation is linear, determine whether it indicates a positive or negative association between the variables. Use this information to answer the following. Do the two variables have a linear relationship? A. The data points have a linear relationship because they lie mainly in a straight line. C. The data points do not have a linear relationship because they lie mainly in a straight line. Do the two variables have a positive or a negative association? A. The two variables have a positive association. B. The two variables have a negative association. C. None of the above B. The data points do not have a linear relationship because they do not lie mainly in a straight line. D. The data points have a linear relationship because they do not lie mainly in a straight line. A 30- 20- 10- : 20 Explanatory 8 40
What does it mean to say that two variables are positively associated? Negatively associated? What does it mean to say that two variables are positively associated? A. There is a linear relationship between the variables, and whenever the value of one variable increases, the value of the other variable decreases. B. There is a relationship between the variables that is not linear. C. There is a linear relationship between the variables, and whenever the value of one variable increases, the value of the other variable increases. D. There is a linear relationship between the variables. What does it mean to say that two variables are negatively associated? O A. There is a linear relationship between the variables. B. There is a linear relationship between the variables, and whenever the value of one variable increases, the value of the other variable decreases. C. There is a linear relationship between the variables, and whenever the value of one variable increases, the value of the other variable increases. D. There is a relationship between the variables that is not linear.