A Scatterplot uses Cartesian coordinates to graph two variables for a data set. The data is graphed using points, the independent variable plotted along the horizontal axis and the dependent variable along the vertical axis. This kind of visualization is useful for examining correlations. When both variables increase, there is a positive relationship and when one increases and the other decreases, there is a negative one. A line is sometimes included on a scatterplot to indicate the trend of the data, a close fit between this trend line and the points indicates a correlation. This scatterplot plots the FIFA ranking of national soccer teams against their respective countries GNP per capita.
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