1
2. . 75000 743 . ., 89000, 820 . - . , ( ).
:
: q=1000-P;
( ):
(t) 2, .
x 1000 = | = 1000 . | |||
2
2. 45 : 20, 22, 17, 15, 16, 21, 24, 17. :
1. ;
2. Lim, Am, ;
3. , .
:
1. : 15, 16, 17, 17, 20, 21, 22, 24
2. :
: Am = V max V min = 24 15 = 9;
:
3.
, 30 ;
d = V M;
n
(V) | . . | d | d2 |
-4 | |||
-3 | |||
-2 | |||
-2 | |||
4.
, 10%, () >25%. .
3
1. , , , :
;
;
;
.
- | |
- |
x 1000 = | = 420,7 1000 . | |||
|
|
. | x 1000 = | = 128,9 1000 . | ||
-22,8; . -2,5; -101,7 1000 .
:
. | x 100%= | = 30,6%. | ||
-5,4%; . -0,6%; -24,2%.
- | x 100 = | = 0,6 100 . | ||
- |
3
2. . 70 :
50 , 40 .
65.
70 .
- 15000 , - 12800 .
:
= * * ;
= | = | = 0,93 | ||
= | , () | = | = 0,8 | |
= | = | = 1,17 | ||
= * * = 0,93 * 0,8 * 1,17 = 0,87.
4
1. 8 : 148, 130, 151, 141, 114, 123, 136, 145. :
1. ;
2. Lim, Am, ;
3. , .
:
1. : 114, 123, 130, 136, 141, 145, 148, 151.
2. :
: Am = V max V min = 151 114 = 37;
:
3.
, 30 ;
d = V M;
n
(V) | . . | d | d2 |
-22 | |||
-13 | |||
-6 | |||
4.
, 10%, () >25%. .
5
2. , 85 (m1 = 2,1 ), - 80 (m2 = 2,3 ). , .
|
|
:
:
(t) 2, .
6
2. , 46,8 (m1 = 2,1%), 59,2 (m2 = 1,3%). , .
:
:
(t) 2, .
7
1. , , , :
;
;
;
;
.
. | . | x 1000 = | = 10,3 1000 . | |
= | = 9. | |||
:
x 100%= | = 10,6%. | |||
-50%, -9,8%.
x 100 = | = 1 100 . | |||
7
2. , 15 - : 45, 45, 47, 49, 42, 40, 45, 46, 48, 49, 47, 49, 40, 44, 45. :
1. ;
2. ;
3. Am, Lim .
:
1. : 40, 40, 42, 44, 45, 45, 45, 45, 46, 47, 47, 48, 49, 49, 49.
2. :
M = 45;
M = 45;
: Am = V max V min = 49 40 = 9;
:
8
1. , :
, ;
, , .
1 | |||||||
1- | |||||||
x 1000 = | = 11,1 1000 . | ||||||
|
|
x 1000 = | = 8,9 1000 . | |||
= = 11,1 8,9 = 2,2;
1 | x 1000 = | = 12,4 1000 | ||
x 1000 = | = 9,2 1000 | |||
321+3 |
, 1- | x 1000 = | = 6,2 1000 | ||
+ , 1- | x 1000= | 3 + 1 | = 12,3 1000 | |
321+3 |
8
2. : 15, 14, 18, 17, 16, 20, 19, 16, 14, 16, 17, 12, 18, 19, 20. :
1. ;
2. ;
3. Am, Lim .
:
1. : 12, 14, 14, 15, 16,16, 16, 17, 17, 18, 18, 19, 19, 20, 20,
2. :
M = 16;
M = 17;
: Am = V max V min = 20 12 = 8;
:
9
2. , ., 95%. m = 0,5 , 3,5.
:
: ∆ =t* m.
n ;
m ;
∆ - .
t-
95% t = 2 ( ).
∆= t* m= 2 * 0,5= 1,0
, , 49 .
10
1. , . .
:
% | x 100% = | x 100%= 0,9%. | ||
1,3%, -18%.