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7/25/2019 Collective Risk Model.pptx
http://slidepdf.com/reader/full/collective-risk-modelpptx 1/11
COLLECTIVE RISK MODEL
(MODEL RISIKO KOLEKTIF)
Faihatuz Zuhairoh,
M.Sc.
7/25/2019 Collective Risk Model.pptx
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1.1 Pengenalan
1.2 Distribusi Mae!u" (CompoundDistribution)
1.# Ru!us K$n%$lusi
1.& Si'atsi'at ari Compound PoissonDistribution
M*TERI
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M$el risi"$ +aa risi"$ ini%iual,!e!+erti!bang"an setia+ +$lis ini%iu an"lai! +aa setia+ +$lis asuransi. Seang"an!$el risi"$ "$le"ti' -aitu !engu!+ul"anse!ua "lai! -ang i+er$le engan!enu!la"an se!ua +$lis ala! suatu+$rt'$li$.
Dala! !$el risi"$ "$le"ti', iasu!si"anba/a suatu "u!+ulan "lai! ala! +$rt'$li$ari +$lis !eru+a"an suatu +r$ses ran$!.
PENGENALAN
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*nai"an N in$tasi"an sebagaiban-a"n-a "lai! -ang iasil"an $lesuatu +$lis ala! +eri$e tertentu.
Misal"an X 1 in$tasi"an sebagai u!la"lai! -ang +erta!a, X 2 sebagai u!la
"lai! -ang "eua, an seterusn-a,
!a"a0
!enunu""an "u!+ulan "lai! -ang
iasil"an ari +$rt'$li$ sela!a +eri$e
DEFINISI
1 2 N S X X X = + + +L
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ntu" !e!buat suatu !$el -ang bai",u!u!n-a iguna"an 2 asu!si asarberi"ut.
1. !eru+a"an %ariabel ran$!-ang beristribusi ienti".
2. Variabel ran$! saling bebas.
Prinsi+ ala! +enge!bangan te$ri+aa !$el risi"$ "$le"ti' aala 'ungsi+e!bang"it !$!en (!.g.') .
1 2, , X X L
1 2, , , N X X L
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Misal"an in$tasi"an sebagai 'ungsiitribusi ari X i -ang ienti" an
ine+enen. *!bil 3 sebagai %ariabel
ran$! engan 'ungsi istribusi, !a"a
in$tasi"an sebagai !$!en "e" an
in$tasi"an sebagai !.g.' ari 3.
s r us umpu anKlaim
( ) P x
k k p E X =
( ) tX
x M t E e =
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in$tasi"an sebagai !.g.' ariban-a"n-a "lai!, an
in$tasi"an sebagai !.g.' ari
"u!+ulan "lai! -ang a"an itulis"anengan
( ) tN N M t E e =
( ) tS
S M t E e
=
( )S F s
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[ ]
[ ]
[ ]
[ ]
[ ] [ ]
[ ]
[ ]
0
1 20
1 2
0
1 20
0
N N
N
n
N n
n
n
nn
n
E S E E S N
E S N n P N n
E X X X N n P N n
E X X X N n P N n
E X X X P N n
n P N n
E N
µ
µ
∞
=
∞
=
∞
=
∞
=
∞
=
=
= = =
= + + + = =
= + + + = =
= + + + =
= =
=
∑
∑∑
∑∑
L
L
L
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( ) ( ) ( )( ) ( )
[ ] ( ) ( )
[ ] ( ) ( )2
N N N Var S E Var S N Var E S N
E N Var X Var N
E N E Var X Var N
E N Var x Var N
µ
µ
µ
= +
= +
= +
= +
( )
( ) ( )
( )
log
log
X
tS tS
S
N N M t
X
N X
M t E e E E e N
E M t E e
M M t
= = = =
=
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Diasu!si"an ba/a 4 beristribusi ge$!etri",engan 'ungsi "e+aatan +eluang ari 4aala
Di!ana an . Tentu"an
( )Pr n
N n pq= =
CO4TO5
( ) N M t 0 1q< < 1 p q= −