: , , . (0:
(0: ,
(y):
P1= P(-∞ < y < 14,5) =
P2= P(14,5 < y < 17,5) = =0,0045
P3= P(17,5 < y < 20,5) =
P4= P(20,5 < y < 23,5) =
P5= P(23,5 < y < 26,5) =
P6= P(26,5 < y < 29,5) =
P7= P(29,5 < y < 32,5) =
P8= P(32,5 < y < 35,5) = 0,0045
P9= P(35,5 < y < ∞) =
3
(a(i);a(i+1)] | n(i) | P(i) | ||
(-∞;25,5] | 0,10027 | 10,027 | 0,409767 | |
(25,5;26,5] | 0,18747 | 18,747 | 1,471916 | |
(26,5;27,5] | 0,27188 | 27,188 | 0,051911 | |
(27,5;28,5] | 0,24549 | 24,549 | 0,008286 | |
(28,5;29,5] | 0,13784 | 13,784 | 1,038788 | |
(29,5;30,5] | 0,04604 | 4,604 | 0,079239 | |
(30,5;∞) | 0,01101 | 1,101 | 3,275387 | |
Sum | 6,335293 |
= 6,335293
( (.
S = 9, r = 2.
6)=6,05
.. , , .
3. f(y)
( 0,95).
0.2782
27.29 - 0.2782 < < 27.29 + 0.2782
27.0118 < < 27.5682 Y
-
9. :
) ;
) ;
)
α = 0,05(0: ρ = 0), α: ρ ≠ 0;
) ;
) Y X, X Y .
4
)
(X,Y)
X\Y | n(x) | |||||||
n(y) | n=100 |
|
|
) X = 128,8; Y = 27,29; Sx = 1,51; Sy = 1,4021.
:
:
) .
:
:
13,97
.. > , , . Y .
)
Y |
Xy |
Yx |
. 4
) Y X:
Y:
: 0,88 * 0,76 = 0,6688 =
. 4.