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Skewness
This measure represents the lateral deviation, or in general terms, the deviation from the center, or the symmetry (or lack thereof) of a probability distribution. In general, if skewness is negative, it implies a deviation to the right, and if it is positive, it implies a deviation to the left:
Take a look at the following diagram, which depicts the skewness statistical distribution:
Depiction of the how the distribution shape influences Skewness.