A Pew Research Center survey found that social networking is popular in many nations around the world. The file Global Social Media contains the level of social media networking (measured as the percentage of individuals polled who use social networking sites) and the GDP at purchasing power parity (PP) per capita for each of 24 selected countries. (Data extracted from “Emerging Nations Embrace Internet, Mobile Technology," bit. ly/1mg8Nvc.)

a. Construct a scatterplot with GDP (PP) per capita on the X axis and social media usage on the Y axis.

b. What conclusions can your reach about the relationship between GDP and social media usage?