:
1.
2.
3.
4.
5.
6.
7.
8.
1. . , . , , , ..
, , , .
- .
, .
:
o ( , ..);
o ( ).
2. . , .
.
, .
=
1,2 n ();
n .
, (), , 15 , .. , .: 21,20,20,19,21,19,18,22,19,20,21,20,18,19,20.
= (21+20+20+19+21+19+18+22+19+20+21+20+18+19+20)/15= 20
, , , , , . ( ).
.
=
;
f- .
(f) , , , .
, . :
|
|
, .() | () (f) | * f |
= (36+76+ 100+63+22) /15=20
, , , , , .
, , 100 , 100.
:
, () | 19 | 20 | 21 | 22 | |
(f), % | 13,4 | 26,6 | 33,4 | 6,6 |
, = (18*13,4+19*26,6+20*33,4+21*20+22*6,6)/100= 20.
, , ().
3. ( ), .. , , .
,
, . | , ., (f) | , . () | * f |
1000 1000 1200 1200 1400 1400 1600 1600 1800 1800 | |||
- |
: , - .
, .. 2= (1000+1200)/ 2 =1100 .
1000 . , , ..200 . (1200-1000), 1000 . 200 . , 800 . (1000- 200). , , .. .
=145800/100= 1458
1458 . .
4. :
, .
. / 150 . / 150 .
, ( ) .
. , 10 %, 10%.
( ) , .
, , ( ), .
|
|
5. ( ). .
. i- ( ). .
, i . ().
: = , m1- - m1= , , I , .. m1= .
m1 I :
=m1*i+ =
. .
: :