What is the real power in using a scatter plot? Scatter plots display the data points in two series, with a trendline that will show the correlation between the series. Scatter plots provide a line of best fit with an R-squared value, which lets you explore causation between data series. Scatter plots provide a line of best fit with an R-squared value, which lets you explore correlations between data series. Scatter plots "plot" every data point, which will display correlations between data series by the heights of the series