11. Correlation

Which of the following situations best describes the concept of causation rather than just correlation?

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

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

If the correlation coefficient between $x$ and $y$ is equal to $-1.0$, which of the following statements is true?

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

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

Which of the following correlation coefficients represents the strongest relationship?

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

Given a scatterplot showing a strong negative linear relationship between two variables, which is most likely the correlation coefficient for the set of data shown?

Which of the following is not a possible value for the correlation coefficient $r$?

Given the following correlation matrix: $\begin{array}{cccc}& X& Y& Z\\ X& 1.00& 0.45& -0.12\\ Y& 0.45& 1.00& 0.30\\ Z& -0.12& 0.30& 1.00\end{array}$ What is the weakest correlation in this matrix? Enter the entire value.

Which of the following is a characteristic of the correlation coefficient?