skewness

skew +‎ -ness

skewness (countable and uncountable, plural skewnesses)

1. The property of being skew.
   • 2020, Anthony So, Thomas V. Joseph, Robert Thas John, Andrew Worsley, Dr. Samuel Asare, The Data Science Workshop, Packt Publishing Ltd, →ISBN, page 111:

     A very effective area where we can apply feature engineering is by looking at the skewness of data and then correcting the skewness through normalization of the data. Skewness can be visualized by plotting the data using histograms and density plots.

2. (statistics) A measure of the asymmetry of the probability distribution of a real-valued random variable; is the third standardized moment, defined as ${\displaystyle \scriptstyle \gamma _{1}={\frac {\mu _{3}}{\sigma ^{3}}},\!}$ where ${\displaystyle \mu _{3}}$ is the third moment about the mean and ${\displaystyle \sigma }$ is the standard deviation.