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or 20 countries-plot the GDP per capita on the horizontal axis and % out of pocket payment on the vertical axis-is there a negative or positive slope?...
Using ANY data set from the OECD for 20 countries-plot the GDP per capita on the horizontal axis and % out of pocket payment on the vertical axis-is there a negative or positive slope? I have done this and I am not getting a slope-more like a cluster with US as an outlier.