. , . , , [5]. , . .
25 , , , . . , , 25 , . 7.2:
7.2.
3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | |
1 | 1 | 2 | 2 | 3 | 4 | 3 | 4 | 3 | 2 | 2 | 1 | 1 | |
1 | 2 | 4 | 6 | 9 | 13 | 16 | 19 | 21 | 22 | 23 | 24 | 25 | |
1 | 6 | 12 | 20 | 30 | 44 | 58 | 70 | 80 | 86 | 90 | 94 | 98 |
7.2 , ( ). , (. . 5.2).
, . . , () . , . , 9 , 7 , 7 9.
(. . 5.5), . . 0,5 . , 5, 4,5 5,5,.. (4,5; 5),4,5 5,5 .
. ,
|
|
7.3.
1 | 4 1 + 1 = 2, 5: 2 + 2 = 4, 6: 4 + 2 = 6 . . | |
2 | 4 (4,5; 3,5), 5 (4,5; 5,5) . . | |
3 | 4: (1,5/25) 100% = 6%, 5: (3/25) 100% = 12% . . |
5 (4,5; 5,5) (. 7.3).
, , 5, . , , 5, , 3, 4 , 5, (3/25) 100% =12%. , 5, : 12% 5 . 12- 25 5. . 7.2, , 5 , 12% . , . , , . , , 100. , , 100% .
, - , , , % [9]. - 5 , . 7.4 . 7.5.
7.4.
1 | 15 | 14 | 13 | 12 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | ||
2 | 1 | 1 | 1 | 1 | 2 | 3 | 3 | 4 | 3 | 2 | 2 | 1 | 1 | |
3 | 25 | 24 | 23 | 22 | 21 | 19 | 16 | 13 | 9 | 6 | 4 | 2 | 1 |
7.5.
1 | ()/100%, | |
2 | L , 1- | |
3 | L (cum. f) 1- ( , () /100%) | |
4 | , ()/100% | |
5 | 4- 2- . |
, . , .
|
|
, , . , , , . , . , . - . , .
, . .
Z -
i- (X) Xi X . X Xf X Xt > , 1- . X.
, , , . Xt , . - .
Z- . . , . i-
X. i- ; X (i= 1,2,..., N); Sx , (. . 5.2).
, { X, ^ . X Xi (/ = 1,2,..., N), , . - i 10 (. 5.2). :
, 1. , Z- . , , .
10 Z- 2,6:
|
|
10 (. 7.6).
7.6.
i |
| Xi | Xi-X | Zi | |||||||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | ||||
1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 6 | 1 | 0,38 |
2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | -0 | -1,14 |
3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | -4' | -1,52 |
4 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 9 | 4 | -1,52 |
5 | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 4 | -1 | -0,38 |
6 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 4 | -1 | -0,38 |
7 | 1 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 5 | 0 | 0 |
8 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | -1 | -0,38 |
9 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 9 | 4 | -1,52 |
10 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 6 | 1 | 0,38 |
=5 Sx =2,6 | = 0 | Z=0 Sz =\ |
, , Z-
.
, , , Z- . Z , , .
Z- , Z 3 +3. 5 +5, , , , .
Z- , . , , . , Z- . , Z , . , , Z- , .
Z- . 7.6. Z2 = -1,14 Z3 = -1,52 Z2 = Z3 = 1.
Z-, . , Z- . Z- .