The Two Piece Normal Distribution

The two-piece normal, also called split normal, binormal, or double-Gaussian,  results from joining at the mode the corresponding halves of two normal distributions with the same mode but different standard deviations.

Brief History of the Two-Piece Normal

A brief recollection of the history of the two-piece normal distribution discovery: 119 years from the first publication of Gustav Fechner original work until its latest re-discovery.

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