If you use Microsoft Excel on a regular basis, odds are you work with numbers. Put those numbers to work. Statistical analysis allows you to find patterns, trends and probabilities within your data. In this MS Excel tutorial from everyone's favorite Excel guru, YouTube's ExcelsFun, the 39th installment in his "Excel Statistics" series of free video lessons, you'll learn about variability (or dispersion or spread). Create an X-Y Scatter Diagram chart showing data points and the mean.