4. Consider the following scatter plot showing the log of GDP per capita on the horizontal axis and the Control of Corruption (CC) measure by the World Governance Indicators on the vertical axis using averages between 2012 and 2017. The sample only includes countries where we have data on democracy. Solid dots show countries with fair and competitive elections and hollow dots show countries that have no such elections. OUDONE NOR OCHPOLUX OUZNO IRL O OURES. FRA USA O OCPV I O O SVN O OGEO . CRI OFSP OKOR AVG. Control of Corruption (WGI: 2012-2017) O O SET SHA INDO GOTTO O OMEO OPRY O 8 10 12 AVG. Log of GDP per capita, PPP adj. (WDI: 2012-2017) (a) (5 points) Recall from class, that CC is measured as a z-score. For example, Guatemala is a democracy and has a control of corruption score of -0.73. What does that number mean? Explain