Table 1: Special cases of the proposed family of distributions.

Parameters pdf
Model 1 s = 3, r = α = 1
Model 2 s = 5, r = α = 2, β = 3
Model 3 s = 3, r = 10, α = 2, β = 1
Model 4 s = 6, r = 8, α = 4, β = 2
Model 5 s = r = 12, α = 2, β = 6
Model 6 s = 24, r = 6, α = 2, β = 3
Model 7 s = 8, r = 4, α = β = 2