My Math Forum Average Mean Deviation VS. Standard Deviation

 Probability and Statistics Basic Probability and Statistics Math Forum

 July 14th, 2016, 06:34 AM #1 Senior Member   Joined: Oct 2015 From: Antarctica Posts: 128 Thanks: 0 Average Mean Deviation VS. Standard Deviation Average Mean Deviation, to me, has a much more intuitive meaning than Standard Deviation. Truthfully, I'm not even sure why we use Standard Deviation. I suppose that's where my statistics class failed me. Anyway, I have a few questions: Why isn't average mean deviation taught in elementary statistics classes? Which should I be using for my own personal projects? What would, for example, a confidence interval look like if I were to use Average Mean Deviation instead of Standard Deviation to obtain its formula?
 July 14th, 2016, 01:21 PM #2 Global Moderator   Joined: May 2007 Posts: 6,822 Thanks: 723 Standard deviation gives more weight to larger errors. When you are updating data and getting deviations along the way, average mean deviation is more cumbersome than standard deviation.

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