represents a Frechet distribution.
FrechetDistribution[α, β]
FrechetDistribution[α, β, μ]
FrechetDistribution[2, 3]
→ FrechetDistribution[2, 3]Mean[FrechetDistribution[a, b]]
→ Piecewise[{{b*Gamma[1 - a^(-1)], 1 < a}}, Infinity]Mean[FrechetDistribution[2, 3]]
→ 3*Sqrt[Pi]Median[FrechetDistribution[a, b]]
→ b/Log[2]^a^(-1)