Page 92 - MODUL TEORI PELUANG_FULL_FLIPBOOK
P. 92
O !
= (64e ) /e
!pp
O ! !
= e /e
o
ª
!E 5
=
!q 1
! !&p
= (124) =
!q !q
§ P ;
> 0
5. (
) = ¦
0 ;
e µ l
% P
a. () =
§ /
f
%
P P
= −
§ − −§ /
f
∞
= −
§ P − § P
0
= (0 − 0) − (0 − 1) = 1
b. Momen pertama sampai momen ke empat dari X!
%
¬ ¬ P
( ) = (§ ) = § § /
f
% (¬P )
= § /
f
(¬P ) ∞
= §
¬P 0
%(¬P ) f(¬P )
= § − §
¬P ¬P
P
= = ( − 1)
¬P
u
P!
( ) = −( − 1)
( ) = 2( − 1)
uu
P"
P&
uuu
( ) = −6( − 1)
PO
ÙÚ
( ) = 24( − 1)
80