,,,
:
6-
SHAPE * MERGEFORMAT
201005
, ( 1)
1
|
|
-
, .
|
- , , Ni |
- - N= *Ni |
- - , . ti |
, . t |
( ) * P(j) |
- - . n |
- nj |
|
5 |
39 |
1300 |
50700 |
2000 |
2 |
1 |
1 |
15 |
|
2 |
0 |
14 |
||||||
|
8 |
0 |
12 |
||||||
|
10 |
1 |
10 |
1)
ti * ti 39 * 2000
= = = = 39000
nϠ nϠ 1 + 1
2) -
ti * ti 39 * 2000
= = = = 1529
n͠ n͠ 15+14+12+10
3) N
Ni * Ni 39 * 1300
N = = = = 994 .
n͠ n͠ 51
4) N ,
Ni * Ni 39 * 1300
N = = = = 25350 .
nϠ nϠ 2
1) j () (j)
, .
* nj + nj
P(j) =
N
* - 4
P(1)= (1+15)/50700 = 3,16 *10
* - 4
P(2)= (0+14)/50700 = 2,76 *10
* - 4
P(8)= (0+12)/50700 = 2,37 *10
* - 4
P(10)= (1+10)/50700 = 2,17 *10
2) j () (/j)
, , ,
j
, , .
nj
(/j) =
nj + nj
*
(/1) = 1/(1+15) = 0,0625
*
(/2) = 0/(0+14) = 0
*
(/8) = 0/(0+12) = 0
*
(/10) = 1/(1+10) = 0,0909
*
3) (j/) j ()
, j j .
* nj
(j / ) =
n
*
(1/ ) = 1/2 = 0,5
*
(2/ ) = 0/2 = 0
*
(8/ ) = 0/2 = 0
*
(10/ ) = 1/2 = 0,5
*
4) (j/) j ()
, j j .
* nj
(j / ) =
n
*
(1/ ) = 15/51 = 0,294
*
(2/ ) = 14/51 = 0,275
*
(8/ ) = 12/51 = 0,235
*
(10/ ) = 10/51 = 0,196
*
5) (/+) j () .
, j j .
* nj + nj
(j/+) =
n + n
*
(1/+) = (1+15)/(2+51) = 0,302
*
(2/+) = (0+14)/53 = 0,246
*
(8/+) = (0+12)/53 = 0,226
*
(10/+) = (1+10)/53 = 0,208
- j- () j- (), :
j() = (/j)
1) j- :
* * njϠ nj + nj͠ nj
j() = (/j) * (j) = * =
* -5 nj + nj N N
1() = 1/39*1300=1,97*10
*
2() = 0/50700=0
*
8() = 0/50700 = 0
* -5
10() = 1/50700 = 1,97*10
2) j- j()
* * * -5 -5 -5
() = (/j) * (j) = j() = 1,97*10 + 0 + 0 + 1,97*10 = 3,94*10
3) :
* * * * -5
= 1 - (/j) * (j) = 1 -() = 1 3,94*10 = 0,9999606
. , , , * -t/T
=
, :
* * -5
= 1 = t/TϠ = 2/39000 = 5,13*10
, 5- 39000 2 , .
N N
N :
()1 = ()2 = ..= ()j = .=()N
. , .. (n) , (n=1,2.., N)
na na N - na
(n) = N * () ( 1 ())
na N!
N =
na! (N n)!
N n = 0
N
В = (n = 0) = (1 ())
N, Ϡ () , , , , , :
na
(N) - N*(n)
(n) = * 堠
n!
:
-5
- N*(n) -50700*5,13*10
В = 堠 = 堠 = 0,0742
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