Questions from Statistics Principles

Q: Contrast the differences between qualitative and quantitative variables. Discuss the differences

Contrast the differences between qualitative and quantitative variables. Discuss the differences between discrete and continuous variables.

Q: True or False: If the linear correlation coefficient is close to

True or False: If the linear correlation coefficient is close to 0, then the two variables have no relation.

Q: A _____ variable is a variable that is related to both the

A _____ variable is a variable that is related to both the explanatory and response variable.

Q: True or False: Correlation implies causation.

True or False: Correlation implies causation.

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Q: Match the linear correlation coefficient to the scatter diagram. The scales

Match the linear correlation coefficient to the scatter diagram. The scales on the x- and y-axes are the same for each diagram. (a) r = 0.787 (b) r = -0.787 (c) r = -0.053 (d) r = 0.946

Q: Match the linear correlation coefficient to the scatter diagram. The scales

Match the linear correlation coefficient to the scatter diagram. The scales on the x- and y-axes are the same for each diagram. (a) r = -0.969 (b) r = -0.049 (c) r = -1 (d) r = -0.992