, , .
, , . , .
, , , , .
, , , - , , .
. .
1, 2, 3, 4, 5, 6, 7 (..). 1 + 2 + + 7 = 28 .., 28: 7 = 4 ..
, 7 .., 4 ..
. .
. 4.20 (7, 6, 5, 4, 3, 2, 1 ..), (1, 3, 5, 7, 6, 4, 2 ..) (7, 1, 6, 2, 5, 3, 4 ..) .
( 1)
|
( 2)
|
( 3)
|
( )
|
4.20.
. 4.26 .
4.26.
³ | , | |
1 | ||
1, 2, 3, 4, 8, 28 | ||
5, 6, 7, 9, 10, 11, 12, 14, 15, 16, 19, 20, 23, 24, 26, 27 | ||
13, 17, 18, 21, 22, 25 | ||
2 | ||
2, 3, 4, 5, 6, 7, 8, 10, 11, 12 | ||
1, 9, 13, 14, 15, 16, 17, 18, 19, 20, 23, 24, 27, 28 | ||
21, 22, 25, 26 | ||
3 | ||
1, 2, 3, 4, 8, 9, 10, 11, 12, 15, 16, 17, 18, 19, 20, 22, 23, 24, 25, 26, 27, 28 | ||
5, 6, 7, 13, 14, 21 |
. 4.26, 1 6 28 .., 16 28 .., 6 28 .., (60 + 161 + 62)/28 = 1 ; 2 10 28 .., 14 28 .., 4 28 .., (100 + 141 + 42)/28 = 0,786 ; 3 22 28 .., 6 28 .., (220 + 61)/28 = 0,214 .
, , .
, . 4.27.
4.27.
, | |
, 50% , , , . 4.27.
|
|
, , .
dz .
.
, , , , , , .
, , 璺 , , , , , .
. 4.21.
4.21.
. 4.21, , . SAC SC . .
. 4.21, S 1 = SAC + SC.
. 4.21, , , .
. 4.21, S 2 = SAC + SC + SA.
S 2 > S 1, .
. 4.21, , , .
. 4.21,
S 3 = (SAC - D SAC) + (SC - D SC) + SA = S 1 + SA (D SAC + D SC).
SA (D SAC + D SC) , SA ≤ (D SAC + D SC), , SA > (D SAC + D SC).
. 4.21, , .
, , , 璺 .
, , , , , .
|
|