7.16
.
100. , . | , . | , . | |
3 | |||
3-4 | |||
4-5 | |||
5-6 | |||
6 | |||
- | - |
:
) 100 .
)
)
:
) 100 . = / = (2.5*48*25 + 3.5*6*24 + 4.5*10*23+5.5*12*20+6.5*8*18) / (25*4+6*24+.+8*18) = (/100 )
) = / - = 110.000.000 / 40 = 2.750.000 ./.
) = / = 110.000.000 / (4*25000/1000 + 6*24000/923 + 10*23/821 + 12*20/690 + 8*18/600) = 110.000.000/1124 = 9786.4
7.18
, . | , . . | , . | , .. | ||
22,0 | 19,8 | ||||
21,8 | 18,0 | ||||
22,2 | 21,6 | ||||
:
)
)
, . . , / .
:
) :
. = / - .
= (10560 + 19620 + 12210) / (10560/22 + 19620/21.8 + 12210/22.2) = 220
.
) :
= (19.8*50 + 18*95 + 21.6*54) / (50+ 95+54) = 3866.4 / 199 = 19.429
.
: (22*50 + 21.8*95 + 22.2*54) / (50+ 95+54) = 219 .
(19.429-220= -200.571) 200.571 :
1) :
Z¯1 Z = 19,429 219 = - 199.571 /
2)
Z - Z¯0 = 219 220 = - 1 /
7.21
, . | , % | , % | |
-4.5 | |||
+3.6 | |||
+5.2 |
:
|
|
) :
)
:
) :
= . /
-4,5% = 2440 / a0 * 100% - 100%
95.5% = 2440 / a0 * 100%
0.955 = 2440 / a0
a01 = 2440/0.955 = 2554.97
a02 = 2520/1.036 = 2432.43
a03 = 2610/1.052 = 2480.99
= (2440 + 2520 + 2610) / (2554.97 + 2432.43 + 2480.99) = 1.014
+ 1,04%
) = / . = (2440*0.25 + 2520*0.12 + 2610*0.15) / (2440 + 2520 + 2610) = 1303.9 / 7570 = 0.1722 - . .