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Understanding Skewness and Kurtosis

George Pipis explains two key concepts of a distribution:

Most commonly a distribution is described by its mean and variance which are the first and second moments respectively. Another less common measures are the skewness (third moment) and the kurtosis (fourth moment). Today, we will try to give a brief explanation of these measures and we will show how we can calculate them in R.

Click through for an explanation. H/T R-Bloggers