Editing Dirichlet distribution (section)

====String cutting====
One example use of the Dirichlet distribution is if one wanted to cut strings (each of initial length 1.0) into {{mvar|K}} pieces with different lengths, where each piece had a designated average length, but allowing some variation in the relative sizes of the pieces. Recall that <math>\alpha_0 = \sum_{i=1}^K \alpha_i.</math> The <math>\alpha_i/\alpha_0</math> values specify the mean lengths of the cut pieces of string resulting from the distribution.  The variance around this mean varies inversely with <math>\alpha_0</math>.

[[Image:Dirichlet example.png|center|Example of Dirichlet(1/2,1/3,1/6) distribution]]