The following table gives data collected from an apartment building survey which asked residents to indicate how many pet fish they kept in their home. The apartment number of each home was recorded along with the number of pet fish they owned. (a) Describe the relationship between the apartment number and the number of pet fish each resident owned.

(b) What is the correlation coefficient of the data? Explain what it means.

(c) Is this association within the data due to causation? Justify your answer.