12-2 Mean Absolute Deviation
Key Concept:
Absolute deviation-The absolute deviation of a data value from the mean is
the distance that the data value is away from the mean of the data set. Because it
is a distance, absolute deviation cannot be negative. You find it by taking the
absolute value of the deviation of the data value. !
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Mean Absolute Deviation- The mean absolute deviation is a measure of variability
that describes how much the data values are spread out from the mean of a data
set. The mean absolute deviation is the average distance that the data values are
spread around the mean.
