, , - , .
(. 2.1). , . . , . .
:
; i(t) i -
(. 2.2). () , ( ).
Pc q1, q2, , qn,
qi(t) = 1 Pi(t)
:
q1, q2, , qn
- . - , , (. 2.3).
23:
P23 = 1 - (1 - P2(t))×(1 P3(t)),
123:
P123(t) = P1(t)×P23(t) = P1(t)×(1 (1 P2(t))×(1 P3(t))).
P(t) = 1 (1 P123(t))×(1 P4(t)).
- . (. 2.4).
, :
- 1,3;
- 2,4;
- .
- 1,5,4;
- 2,3,5;
- , (. 2.3).
. , , (. 2.5).
, , .
|
|
:
1. .
2. .
3. .
. 2.5.
i j bij, i - Pi(t), , .
i- . , , "-", "+".
, :
(2.1), i- Pi(t).
1- :
Pc(t) = P1(t).