Intervals & Tests
What is skewness? It is a measure of the symmetry of a distribution around its mean. Positive values indicate a shift or tail to the right; negative values indicate a shift or tail to the left. Skewness is 0 for a normal distribution. To calculate, use the skewness formula below.
Learn more about the Statistical Inference tools for understanding statistics in Six Sigma Demystified (2011, McGraw-Hill) by Paul Keller, in his online Intro. to Statistics short course (only $89) or his online Black Belt certification training course ($875).