0 1 2 3 4 5 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 0 Probability Random Variable α = 1, β = 1 α = 2, β = 1 α = 3, β = 2 α = 3, β = 0.5 Inverse Gamma Distribution CDF