PearsonDistribution
PearsonDistribution[a1, a0, b2, b1, b0] represents a distribution of the Pearson family with parameters a1, a0, b2, b1, and b0.
PearsonDistribution[type, a1, a0, b2, b1, b0]represents a Pearson distribution of given type.
Examples
dist = PearsonDistribution[1, 0, 1, 0, 1];
PDF[dist, x]RandomVariate[PearsonDistribution[0, 0, 1, 0, 1], 5]Please visit the official Wolfram Language Reference for more details.