The dataset NBAPlayers2011 is introduced on page 88, and includes many variables about players in the National Basketball Association in 2010–2011.

(a) Use technology to create a scatterplot for the relationship between the number of offensive rebounds in the season and the number of defensive rebounds. (Put offensive rebounds on the vertical axis.)

(b) Does the relationship appear to be positive or negative? What does that mean for these two variables? How strong is the relationship?

(c) There appear to be three outliers in the top right. Who are they?

(d) Use technology to find the correlation between these two variables.