In this video I'll quickly show you how to find the coefficient of variation. There are two formulas for samples and populations, but these are basically the same and involve dividing the standard deviation by the mean and lastly converting to a percent. The coefficient of variation is useful for comparing the variation of two groups that have different means, or are measured on different scales.

▬▬ Chapters ▬▬▬▬▬▬▬▬▬▬▬
0:00 Start
0:07 The formulas for calculating the coefficient of variation
0:53 Example, Comparing variation of store wait times
3:02 Interpreting the coefficient of variation
3:32 Wrap up information and ending

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This video is related to many other topics. Check them out:
How to calculate the standard deviation:    • Statistics  How to calculate the sta...  
How to calculate the standard deviation using a Ti83 or Ti84:    • Statistics  Calculating standard dev...  
Find the mean:    • Statistics  Find the mean  

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