How To: Find outliers using the Z-score method

Find outliers using the Z-score method

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 49th installment in his "Excel Statistics" series of free video lessons, you'll learn how to find outliers with the +/- 3 Z-score rule and the ABS function. See how to do a box plot by hand and in Excel. For the Excel Box Plot see how to record MIN, QUARTILE 1, MEDAIN, QUARTILE 3, MAX, AVERAGE on a stacked bar Chart with the mean added as an X-Y scatter.

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