11. Correlation

A data set is found to have a linear correlation coefficient of $r=-0.92$. Which of the following graphs most likely represents the relationship between these variables?

A marketing researcher analyzed advertising budget vs. monthly sales revenue for small retail stores and found that typically the stores that spent more on advertising saw higher sales revenues. However, the relationship wasn't perfect - some stores advertised more but saw fewer sales due to poor location, customer preferences, or bad timing. Which of the following is the most likely value for the correlation coefficient $r$ between advertising budget and sales revenue?

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?

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?