1
. . , .
: , , ; . , , .
:
:
: 14 ( ): 10; 10; 15; 14; 14; 15;12; 12; 12; 9; 13; 13; 16; 16. .
:
1. , 14 ‑ 10, 15, 14....
2. :
9; 10; 10; 12; 12; 12; 13; 13; 14;14; 15; 15; 16; 16
3. N = 11.
4. (ni)
ni(9) =1, ni(10) =2, ni(12) =3, ni(13) =2, ni(14) =2, ni(15) =2, ni(16) =2.
5. ³ ()
= (ni/N)×100%
9 = (1/14) ×100% = 7,14%,
10 = (2/14) ×100% = 14,28%,
10 = 13 = 14 = 15 = 16 = 14,28%
12 = (3/14) ×100% = 21,42%
6.
6.1 (ni)
ճ 9 10 12 13 14 15 16
ni 1 2 3 2 2 2 2
6.2 ()
ճ 9 10 12 13 14 15 16
,% 7,14 14,28 21,42 14,28 14,28 14,28 14,28
7. ()
ճ 9 10 12 13 14 15 16
1 3 6 8 10 12 14
8. ()
' , , :
= 1/2 ( (N/2)+ (N /2+1)
= 1/2 ( (14/2)+ (14 /2+1)) = 1/2 ( 7+ 8) = 6
7, 8 , 7 8
7 = 13; 8 = 13
= 1/2 (13+13) = 13; = 13;
9. ()
= 12, , 12 ‑ 3 (ni (12) =3)
10. ()
:
, n=1,
‑ , i , j .
14 12,9, 13 .
11. (ճ) (ni) (.21).
‑ , , ; , , .
. 21. (ճ) (ni)
- , , ; , , .
|
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: 14 , , , , , , . . .
Excel:
: 14 ( ): 10; 10; 15; 14; 14; 15;12; 12; 12; 9; 13; 13; 16; 16. .
:
1. B ( ), . . 22 .
. 22. ( )
2. . - B, . , - .
3. . .
4. D . D2, , = : 2 /14*100 (. 23). Enter. ϳ 2 .
. 23.
5. F G , I J . . 24.
.24.
6. , : 16 ; 17 ; 18 .
7. . 16 , - . ϳ 䳿 , (.24).
. (.25).
, . , .
. 24. ³
. 25. ij
. 16 100 -, . 26.
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. 26.
8. . , . , . , . , .
9. , . F G. . , , (. 27). . . 28.
. 27. ij
. 28.
: 14 , , , , , , . . .
1. . , , .
2. .
1. ?
2. ?
3. ?
4. ?
5. ?
6. ?
7. ?
8. ?
9. ?
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˳
: 1 10. : 1 11.
2