11. Correlation

Which of the following is not an example of correlation analysis?

Height and weight are positively correlated. This means that:

Given the following correlation coefficients calculated from a dataset, which pair of variables has the strongest correlation? $X$ and $Y$: $-0.85$; $A$ and $B$: $0.60$; $M$ and $N$: $-0.45$; $P$ and $Q$: $0.75$

Which of the following is an advantage of the $r$ (correlation coefficient) over the $\mathrm{cov}$ (covariance) when measuring the relationship between two variables?

Which of the following is a property of the linear correlation coefficient $r$?

Given the following paired data: $(0,0)$, $(1,1)$, $(4,4)$, $(5,5)$, what is the value of the correlation coefficient between the two variables?

Which of the following scatterplots would have a correlation coefficient closest to $r=-1$?

Which of the following correlation coefficients indicates the strongest linear relationship between two variables ($r$)?

Which of the following relationships would most likely have the weakest correlation?

Which of the following $r$-values represents the most moderate correlation?

Which of the following $r$-values represents the weakest correlation between two variables?

Which of the following best describes the $r$ (correlation coefficient) between the weight and price of a box of cereal, assuming that as the weight increases, the price also tends to increase?

Which of the following is a property of the linear correlation coefficient $r$?

Which of the following scatterplots best represents a negative linear relationship between $x$ and $y$?

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