7
| : . -11-1 | .. |
| : ..., . | .. |
2013
m=1000 , σ=800
P(t), f(t), λ(t), T t1=500,t2=1000,t3=1500,t=2500 .
:
P(t) = 
= 
= 
= 
P(500) = (
(0,625) = 0,7324
P(1000)=(
P(1500)= (
= (-0,625) = 0,2676
P(2500)= (
= (-1,875) = 0,0307
(
= 0,8944 → f(t) = 
;
f(500) = 
= 
= 
= 
= 
= 4,2 
, 
f(1000) = 
= 
= 
= 
= 5 ,
f(1500) = 
= 
= = = 4,2 ,
f(2500) = 
= 
= 
= 
= 0,9 ,
λ(t) = 
λ(500) = 
= 
= 0,6 ,
λ(1000) = 
= 
= 1 ,
λ(1500) = 
= 
= 1,6 ,
λ(2500) = 
= 
= 2,9 ,
(t)
0,8
0,6
0,4
0,2
0,5 1,0 1,5 2,0 2,5 t 
,
f(t), 
1
0,5 1,0 1,5 2,0 2,5 t ,
3,0
|
|
|
l(t)´10-5, -1
2,0
1,0
0,5 1,0 1,5 2,0 2,5 t ,
