11. Correlation

Given a dataset where as one variable increases, the other variable tends to decrease in a nearly linear fashion, which of the following values is most likely to be the correlation coefficient for this data?

Which of the following correlation coefficients represents the strongest relationship between two variables?

Which of the following statements about the correlation coefficient is true?

Which of the following statements about the correlation coefficient is correct?

In the context of the correlation coefficient, which word best describes the slope of the line representing the relationship between two variables in a scatterplot?

Which of the following $r$-values represents the strongest negative correlation?

The correlation coefficient $r$ is a number between which two values?

Which of the following best defines the $r$ (correlation coefficient)?

In the context of calculating the correlation coefficient, which of the following best describes the roles of explanatory and response variables?

Which of the following is true about the relationship between correlation and causation?

Which of the following statements about the correlation coefficient is true?

If two different variables are not related at all, they probably have a correlation coefficient of which of the following values?

In a regression and correlation analysis, if $r^2$=1, then which of the following statements is true?