High Quality Content by WIKIPEDIA articles! In probability theory and statistics, the skew normal distribution is a continuous probability distribution that generalises the normal distribution to allow for non-zero skewness. To add location and scale parameters to this, one makes the usual transform xrightarrowfrac{x-xi}{omega}. One can verify that the normal distribution is recovered when ? = 0, and that the absolute value of the skewness increases as the absolute value of ? increases. The distribution is right skewed if ? > 0 and is left skewed if ? < 0.

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