A study was done to investigate the relationship between the amount of Steroids that baseball players use and the number of homeruns that they hit.  The scatter plot is shown below.

Based on the scatter plot, which if the following is the most likely value for r.

        r  =  -1,   r  =  -0.7,  r  =  -0.02, r  =  0.02,  r = 0.7,  r  =  1