15
Pareto distribution (three parameter version)
Parameters:
, , k (0, 0, 0k)
PDF:
1
()
()
()()( )
k
k
kx
fx
kx
, 0x
Moments:
()
1
k
EX
(1),
2
2
(1)
var( )
(1)(2)kk
X
(2)
()()
()
()()rr rkr
EX
k
, 1, 2,3,r , r
Weibull distribution
Parameters:
c, (0c, 0
)
PDF:
1
()
cx
fx c x e
, 0x
DF: () 1
cx
Fx e
Moments:
1
() 1r
r r
EX
c
, 1, 2,3,r
Burr distribution
Parameters:
, , (0, 0, 0
)
PDF:
1
1
()
()
x
fx
x
, 0x
DF:
() 1Fx
x
Moments:
() 1
()
r
r
rr
EX
, 1, 2,3,r ,r