O A. Monthly personal savings would be expected to decrease, because a negative correlation means that the two variables are not associated. OB. Monthly personal savings would be expected to increase, because a negative correlation means that as one variable increases, the other variable tends OC. Monthly personal savings would be expected to remain constant, because a negative correlation means that the two variables are not associated. O D. Monthly personal savings would be expected to decrease, because a negative correlation means that as one variable increases, the other variable tends to decrease. b. Choose the correct answer below. increase. O A. No, because the direction of the causal relationship is incorrect. One can go to college by living longer. O B. No, because there is not enough information about the strength of the correlation. O C. No, because an association between two variables is not sufficient evidence by itself to conclude that a cause-and-effect relationship exists between the variables. O D. Yes, because an association between two variables is sufficient evidence to conclude that a cause-and-effect relationship exists between the variables.

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