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how to find mean absolute deviation formula. The result is the mean absolute deviation. The symbol for Standard Deviation is s the Greek letter sigma.
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But here we explain the formulas. This number is always stated as a positive number. Here represents the summation.
You might like to read this simpler page on Standard Deviation first.
As you did to find the mean of the original data points add the deviations together and divide the sum by the number of values. After completing your three-column table find the mean of the absolute values in the third column. For this data set this final calculation will be. Find the absolute value of the difference between each data value and the mean.
